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Long Thunderbolt 3 cables with full speed.
 

Long Thunderbolt 3 cables with full speed.  

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thallium
(@thallium)
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Joined: 2 years ago
 

Hello

I'm looking for longer (1m-2m) cable for my Akitio node. Can You tell me whichone on the market will be best and will be work with full speed?

Thanks.

 

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noler
(@noler)
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I got mine (1m) from CalDigit:

http://shop.caldigit.com/eu/Accessories/Cables

Edit: They have a US store as well:

http://shop.caldigit.com/us/Accessories/Cables

2016 13" TB + Akitio Thunder3 with EVGA GTX 1060


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thallium
(@thallium)
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What do You think about this cable?

http://www.apple.com/shop/product/HKK22ZM/A/belkin-thunderbolt-3-cable-2-m?fnode=8b

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noler
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Posted by: thallium

 

What do You think about this cable?

http://www.apple.com/shop/product/HKK22ZM/A/belkin-thunderbolt-3-cable-2-m?fnode=8b

   

It's probably a high quality cable. However I wanted a 1 m cable, that's why I went for CalDigit. Also it's only 60W charging power (if that matters to you) while the CalDigit is 100W.

2016 13" TB + Akitio Thunder3 with EVGA GTX 1060


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thallium
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Thank You very much for help. I will order this Caldigit cable in next week.

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Alec
 Alec
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Posted by: noler

 

I got mine (1m) from CalDigit:

http://shop.caldigit.com/eu/Accessories/Cables

Edit: They have a US store as well:

http://shop.caldigit.com/us/Accessories/Cables

   

How well does that cable work, and what GPU are you using? I have an extra long cable from another company, but it's unstable and crashes my graphics. 

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ed_co
(@ed_co)
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Posted by: noler

 

Posted by: thallium

 

What do You think about this cable?

http://www.apple.com/shop/product/HKK22ZM/A/belkin-thunderbolt-3-cable-2-m?fnode=8b

   

It's probably a high quality cable. However I wanted a 1 m cable, that's why I went for CalDigit. Also it's only 60W charging power (if that matters to you) while the CalDigit is 100W.

   

Wow, what a bunch of specs... even for the charging power. I didn't know that this were changing from one cable to another...

mid-2017 Macbook Pro RP560 + MSI GTX 1080Ti Gaming [email protected] (Mantiz Venus) + macOS10.13 & Win10


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Username
(@username)
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There are several manufacturers offering optical TB cables with lengths up to 10 meters. They are about ten times the price of an ordinary TB cable. And I have not seen them in TB3 specs yet. 

2012 Mac Mini + [email protected] (AKiTiO Thunder3 via TB3->TB2 adapter) + macOS


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BlackJack84
(@blackjack84)
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You might want to check Nathan K and Benson Leung's list of approved USB-C cables&chargers here for detailed specifications and little-known flaws of each item.
Too bad it doesn't seem to include the CalDigit cables: if they're fully compliant with the USB-C/TB3 spec, with lengths up to 2m they'd really stand out.
Unless they are rebranded Belkin/Cable Matters cables, which wouldn't be good news (their longer versions are not recommended).

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Username
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Here's one of the manufacturers. 

Thunderbolt 2 up to 60 meter between computer and host.  https://www.corning.com/optical-cables-by-corning/worldwide/en/products/thunderbolt-optical-cables.html

And here's Delocks optical TB2 in 5, 10, 20 and 30 meters. 

http://www.delock.de/produkte/suche.html

2012 Mac Mini + [email protected] (AKiTiO Thunder3 via TB3->TB2 adapter) + macOS


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MorteX
(@mortex)
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Hi, im looking for a 1m long cable, i have this options:

Cable Matters 40GB 1M

Sonnet 40GB 1M

Caldigit 40GB 1M

 

Which do you think is the best option for a Akitio Node Thunderbolt 3?

Thanks.

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itsage
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nando4
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kotlos
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I got the AKiTiO 2m:

Screen Shot 2017 07 20 at 7.22.30 PM

Here is with the factory 0.5m cable:

Screen Shot 2017 07 20 at 7.26.23 PM

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gburns53
(@gburns53)
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I would also like a 3 meter tb3 cable. Doesn't appear they exist. Would like to use my laptop on my sectional couch, there's a distance issue to the nearest table. The 2 meter cable would require me sitting up and moving over, nooooo!

Spectre x360 - Omen Accelerator - GeForce GTX 1080 - Loop to Internal display


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gburns53
(@gburns53)
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It appears only CableMatters and Startech sell an active(40 gbps) 2 meter cable with USB support. 

CalDigits active cable does not have USB support.

 Does this mean your computer would not recognize USB peripherals plugged in the back of your eGPU using CalDigits cable? Or, does this mean the cable just can't be used as a Type-C to Type-C USB? I think it's the latter. If so, it really doesn't matter if you use Caldigits. You can buy USB to USB Type C cables for those needs. 

Spectre x360 - Omen Accelerator - GeForce GTX 1080 - Loop to Internal display


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ikir
 ikir
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Posted by: gburns53

It appears only CableMatters and Startech sell an active(40 gbps) 2 meter cable with USB support. 

CalDigits active cable does not have USB support.

 Does this mean your computer would not recognize USB peripherals plugged in the back of your eGPU using CalDigits cable? Or, does this mean the cable just can't be used as a Type-C to Type-C USB? I think it's the latter. If so, it really doesn't matter if you use Caldigits. You can buy USB to USB Type C cables for those needs. 

The second ones, you can't use it as USB-C cavles but who cares???

eGPU.it
MacBook Pro 2018 Touch Bar i7 quad-core 2.7Ghz - 16GB RAM - 512GB PCIe SSD
my Mantiz Venus extreme mod with Sapphire Nitro+ RX Vega 64
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franketto
(@franketto)
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What do you think of this:

https://www.amazon.com/Thunderbolt-USB-C-40Gbps-Cable-Laptop/dp/B072MN5RCP/ref=sr_1_1?ie=UTF8&qid=1503575944&sr=8-1&keywords=chenyang+2m+thunderbolt+3+usb-c+usb+3.1

 

They say 2m, TB3 40Gb, and also it's compatible with USB-C. Price is quite half a Startech (at least here in my country)...

Is it good/real performance?

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franketto
(@franketto)
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Maybe the problem is it is not declared the PD...

 

Ok, another question:

active TB3 cables like Startech that can be used with USB-C connections/devices, which speed can deliver at max?

Do they reach the theorical 10Gb/s of Gen2, or do they work at lower speed?

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franketto
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Oh, my... on the Startech site, I read THIS:

Performance
Type and Rate Thunderbolt 3 - 40 Gbit/s
 

USB 2.0 - 480 Mbit/s

 

Are they mad??

 

So, if I want a true 10Gb/s on USB-C, I must buy (another) dedicated USB-C 10Gb cable (of course not compatible with TB3)??!

 

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RickyTerzis
(@rickyterzis)
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Hi...i am a new user here. I want to know if your computer would not recognize USB peripherals plugged in the back of your eGPU using CalDigits cable? Or, does this mean the cable just can’t be used as a Type-C to Type-C USB? I think it’s the latter. If so, it really doesn’t matter if you use Caldigits.

 

circuit card assembly

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franketto
(@franketto)
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Hi, you must distinguish the use of the TB3 cable as:

1) TB3 connection

2) USB-C connection

In the 1) you get all the TB3 speed 40Gbps AND you also get the USB devices on the back of eGPU Mantiz, because they are NOT direct USB connection: they are part of the same TB3 connection.

In the 2) you can't use a TB3 active cable to make a USB-C connection at full speed 10Gb and neither at half speed 5Gb... you can connect USB-C devices only at USB2.0 speed 480Mbps. Instead you can use a passive *shorter* TB3 cable at full speed 10Gbps also connecting directly USB-C devices.

BEWARE of *not TB3* 2m USB-C cables: most times they cannot give 10Gbps connection EVEN if they declare it!!

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gburns53
(@gburns53)
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2 open questions. 

Will there ever be a 3 meter TB3 40 gbps cable?

Do we really need 40 gbps cables or would 20 gbps do the trick for most games? In a laptop -> eGPPU -> laptop screen loop

Spectre x360 - Omen Accelerator - GeForce GTX 1080 - Loop to Internal display


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jefniro
(@jefniro)
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Frostillicus_
(@frostillicus_)
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This is a solid (cheap) option for a 1m ACTIVE cable with full 40Gbps/100W PD

https://www.blinq.com/detail/electronics/desktops-monitors/computer-components-parts/j5create-3-3-active-thunderbolt-3-usb-c-cable-white/1544020?condition=brand-new

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karatekid430
(@karatekid430)
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Hello,

Take a look at my post which I solved myself. The Nekteck 2M Thunderbolt 3 40Gbps 100W Active cable allowed me to hit the theoretical limit of 22Gbps PCIe for the first time. I thought the utility was under-reporting, and before my Dell 9370, I thought my Dell 9365 had a bottleneck. I could not explain why my experimental desktop with GC-ALPINE RIDGE AIC was slow as well.

https://egpu.io/forums/thunderbolt-enclosures/low-h2d-bandwidth-result-dell-xps-9370-aorus-gaming-box-0-5m-cable/

Turns out the passive 0.5M 40Gbps cable that came with the eGPU (plus another one from Startech) were underperforming, but the 2M Active one blew them away.

I do not know if that means the Dell laptops and / or the Aorus eGPU are not strong enough at signalling to drive the connection without losses. But it is worrying if the cables that come with things are not performing. Especially since the throughput limit on Thunderbolt 3 is 22Gbps when DisplayPort is not put through it. So if a 40Gbps cable was struggling to make 22Gbps (actually more like 15Gbps in my case), that is disturbing.

Can anybody else test their passive 40Gbps cables and post results, please? If you have a Radeon eGPU, you need AMD-APP-SDKInstaller-v3.0.130.135-GA-windows-F-x64.exe and open CMD and run the command "%userprofile%\AMD APP SDK\3.0\samples\opencl\bin\x86_64\BufferBandwidth.exe". For Nvidia, people seem to use some CUDA-Z program.

If you have active cables, feel free to give comparisons.

If anybody knows how to test eGPU bandwidth in Linux and Mac, please say! Normally I don't give a rat's **** about Mac, but it will mean that people with Macs can run tests for us without dual-booting.

My best guess is taking the source code from AMD APP SDK for the BufferBandwidth.exe and modifying it to work with Linux and OpenCL. Theoretically it can then be made to work with Nvidia - because OpenCL is open. I hate CUDA - anything that confines to a single hardware vendor (hence hatred of Mac).

 

Edit: the download links for the AMD APP SDK 3.0 have been recently extremely hard to find. Last time I just found the installer off another computer in the Downloads directory and moved it to another. But turns out if you search for the exact file name, you get this:  https://community.amd.com/thread/203821 with direct download links.

Pending: Add my system information and expected eGPU configuration to my signature to give context to my posts


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karatekid430
(@karatekid430)
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Posted by: gburns53

I would also like a 3 meter tb3 cable. Doesn't appear they exist. Would like to use my laptop on my sectional couch, there's a distance issue to the nearest table. The 2 meter cable would require me sitting up and moving over, nooooo!

Is this because 3M Thunderbolt 1/2 cables existed? I noticed that. None for Thunderbolt 3.

Corning have optical Thunderbolt 3 cables in the pipeline, supposedly. Somebody speculated that the delay is due to a high failure rate of Intel-branded transceivers with optical Thunderbolt 1/2 cables, and no other manufacturers were able to provide them. Hence they are waiting for the royalty-free thing, and hopefully Intel lifting some restrictions on manufacturing. I also hope they make it with some copper cables running with the optical for power delivery (100W).

What would be cool would be a pair of boxes, each with a Thunderbolt port, a power adapter, and an SFP or QSFP transceiver slot. That way each end could connect and charge the device up to 100W, and in between you could just use an LC optical Ethernet patch cable in between, which can be obtained from 0.5M to an order of kilometres in length.

Intel could at least define a device with a Thunderbolt controller and two ports for daisy chaining, that does not actually count as one of your six in a chain - no other ports, no function other than to do the 3 Rs to repeat the signal ( https://en.wikipedia.org/wiki/Optical_communications_repeater#Classification_of_regenerators). As in, it would be transparent and undetectable. And perhaps provide power delivery with an AC adapter. Otherwise you have to use a dock which are extremely expensive, bulky, and will incur a performance penalty, especially for an eGPU attached afterwards.

Otherwise you can cut open a 2M active cable in the middle and try to splice some more cable in - but depending on the quality of the joins and the new cable, and also the added length, you might find it degrades the performance. Or it might not - the active parts at the ends might be capable of more than 2M. You'd probably want to have god-like soldering skills. Definitely needs to be undertaken at your own risk - and will definitely void your warranty.

The female USB-C to female USB-C adapters are presumably dangerous if the cable orientation is wrong - because they will not contain the mux required to handle the opposite orientation. But if you can figure out the correct direction, they might be able to combine two cables. Again, this is outside of the spec and has to be undertaken at your own risk.

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troywright
(@troywright)
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Posted by: kotlos

I got the AKiTiO 2m:

Here is with the factory 0.5m cable:

I have similar results.
On the left is my CalDigit 2m active cable
On the right is the short one that came with my Aorus 1080
Laptop is Spectre x360 x2 thunderbolt lane

long vs short

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kstl
 kstl
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Hey everyone, 

I'm looking to get a longer active TB3 cable for my setup. Both of the cables recommended in the buyer's guide (the Akitio and the Cable Matters) are super expensive locally. I started looking around for other options that were still 40Gbps but at lower price points in my country. I found these, from CalDigit and StarTech (links are to Canadian amazon store).

Are the cables that are recommended in the buyer's guide there because they've been determined to be more reliable than others? If not, I'd love to suggest that these (and maybe other?) options are added to the buyer's guide for people who might need other options (ie outside of US markets).

2018 13" MBP TouchBar + RX580- [email protected] (AKiTiO Node Pro) + 10.14b & Win10
20" Apple Cinema Display


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Yukikaze
(@yukikaze)
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Joined: 3 years ago
 

To add my experience: The CalDigit 2m cable works just fine as well for my Spectre x360 and Aorus Gaming Box (R9 285).

The bandwidth is looking pretty good (why the heck is the attach an image window still bugging out on me?!):
AIDA64 - Memory Read:  2,628 MB/s.
AIDA64 - Memory Write: 2,331 MB/s.

The result with the 0.5m cable from my original implementation guide was:
AIDA64 - Memory Read:  2,580 MB/s.
AIDA64 - Memory Write: 2,448 MB/s.

My eGPU Zoo - Link to my Implementations.
Want to output [email protected] out of an old system on the cheap? Read here.
Give your Node Pro a second Thunderbolt3 controller for reliable peripherals by re-using a TB3 dock (~50$).

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karatekid430
(@karatekid430)
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Posted by: Yukikaze

To add my experience: The CalDigit 2m cable works just fine as well for my Spectre x360 and Aorus Gaming Box (R9 285).

The bandwidth is looking pretty good (why the heck is the attach an image window still bugging out on me?!):
AIDA64 - Memory Read:  2,628 MB/s.
AIDA64 - Memory Write: 2,331 MB/s.

The result with the 0.5m cable from my original implementation guide was:
AIDA64 - Memory Read:  2,580 MB/s.
AIDA64 - Memory Write: 2,448 MB/s.

Please get AMD APP SDK 3.0 and try BufferBandwidth.exe - I would be interested to know if there is variance between AIDA and BufferBandwidth.exe in your case. Because with BufferBandwidth.exe, I always get 2750MB/s (plus or minus 50MB/s) with an active cable, or 1800MB/s with a passive cable.

https://1drv.ms/u/s!AuN0OlwU3-gMjM1M4JJoNneVoj0Elw

It is at: <homedir>/AMD APP SDK/3.0/samples/opencl/bin/x86_64/BufferBandwidth.exe

Cheers!

Edit: the file from OneDrive has a digital signature proving it has not been tampered with.

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jefniro
(@jefniro)
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My CalDigit 2m cable burned again... this is the second time it happens. No more CalDigit...I don't suggest this cable.

late-2016 13" MacBook Pro Touchbar + [email protected] (AKiTiO Node) + macOS & Win10


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esatamacmodular
(@esatamacmodular)
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Posted by: jefniro

My CalDigit 2m cable burned again... this is the second time it happens. No more CalDigit...I don't suggest this cable.

wow thats no good. for 2m active TB3 cable what are you going to try next? Burn happen in windows or OSX?

iMac 2013 10.14.1, Macbook Air 2013 10.11, MBP 2016 13" 10.13.6 , HP 4530s 10.11, node lite, DA-2 PSU w/mod, PE4L 2.1b expresscard34, GTX460,1050Ti,1060,1070/Ti RX470,560,580


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OliverB
(@oliverb)
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Posted by: franketto

Hi, you must distinguish the use of the TB3 cable as:

1) TB3 connection

2) USB-C connection

In the 1) you get all the TB3 speed 40Gbps AND you also get the USB devices on the back of eGPU Mantiz, because they are NOT direct USB connection: they are part of the same TB3 connection.

In the 2) you can't use a TB3 active cable to make a USB-C connection at full speed 10Gb and neither at half speed 5Gb... you can connect USB-C devices only at USB2.0 speed 480Mbps. Instead you can use a passive *shorter* TB3 cable at full speed 10Gbps also connecting directly USB-C devices.

BEWARE of *not TB3* 2m USB-C cables: most times they cannot give 10Gbps connection EVEN if they declare it!!

Correct, I made some benchmark which verifies the speeds:

https://egpu.io/forums/gpu-monitor-peripherals/tb3-cables-50cm-80cm-both-passive-and-150cm-active-tb2-cables-with-tb2-tb3-adapter-some-benchmarks/#post-47254

2018 15" MBP & 2015 13" MBP connected to RTX2080Ti GTX1080Ti GTX1080 Vega56 RX580 R9-290 GTX680


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jefniro
(@jefniro)
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Posted by: esatamacmodular
Posted by: jefniro

My CalDigit 2m cable burned again... this is the second time it happens. No more CalDigit...I don't suggest this cable.

wow thats no good. for 2m active TB3 cable what are you going to try next? Burn happen in windows or OSX?

I use it in both OS, Windows and MacOS but it burned when I was using Windows. Now I'm using the original 50 cm Akitio cable...

late-2016 13" MacBook Pro Touchbar + [email protected] (AKiTiO Node) + macOS & Win10


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esatamacmodular
(@esatamacmodular)
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Posted by: jefniro

I use it in both OS, Windows and MacOS but it burned when I was using Windows. Now I'm using the original 50 cm Akitio cable...

Ok thanks for update. I'm looking for the best active 2m TB3 cable. I can't have the burning situation!

iMac 2013 10.14.1, Macbook Air 2013 10.11, MBP 2016 13" 10.13.6 , HP 4530s 10.11, node lite, DA-2 PSU w/mod, PE4L 2.1b expresscard34, GTX460,1050Ti,1060,1070/Ti RX470,560,580


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