Mantiz Venus - USB-C long cable?  

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Brawl
(@brawl)
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September 2, 2017 10:27 am  

Hey, 

I currently have a Mantiz Venus on my Macbook Pro (2017). The USB-C cable that came with it is ridiculously short so I want to replace it.

I  tried using the USB-C cable that the Macbook Pro uses to connect the power block to the laptop, and it doesn't work, so I presume it is not a USB-C cable? or there are different types of USB-C cables?

Anyway, does anyone know what cable I need to buy?

Many thanks

Nick

Soon I will add my system & eGPU details or a build link to this my signature to give context to my posts


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switch
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September 2, 2017 11:06 am  

There are multiple kinds of USB-C cables:

- charging only

- charging + USB (this is what apple supplies I think)

- charging + USB + thunderbolt

In order to use the TB3 functionality you need the latter. These USB-C cables are expensive and SHORT. Passive cables can be 50cm long at most (I am quite sure the Mantiz comes with a 50cm cable). In order to go beyond that you need ACTIVE cables. These exist in 1m and 2m flavors and both come with a disadvantage: they limit the max bandwidth (only a bit) and also limit the maximum PD - as they are power users themselves.

Look for USB-C cables with the numeral "3" inscribed next to the Thunderbolt logo. See here a sample image with a compatible cable:

2016 15" HP ZBook 15 G3 [Xeon E3-1545M, Iris Pro p580, no dGPU] + [email protected] (Aorus Gaming Box) + Win10pro


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Brawl
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September 2, 2017 11:41 am  

Great, thank you! really informative.

I will google about how much the bandwidth limiting will affect my gaming 🙂

Soon I will add my system & eGPU details or a build link to this my signature to give context to my posts


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switch
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September 2, 2017 8:28 pm  

I would expect a few percentages of disadvantage when using an active cable compared to using the default passive cable. I would also expect much lower Power Delivery. If you have an 87W PD capable eGPU then expect 40~60W available to the laptop using active cables. IMO this might be the showstopper if you have a 45w CPU and are trying to game on the Laptop's display.

2016 15" HP ZBook 15 G3 [Xeon E3-1545M, Iris Pro p580, no dGPU] + [email protected] (Aorus Gaming Box) + Win10pro


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jefniro
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September 2, 2017 10:34 pm  

I have the CalDigit cable, 2m with the number 3 on it like the picture above. I don't know if it's because I have changed the Akitio's PSU unit (450w Corsair) but the Thunderbolt cable gives  power to my macbookpro now... I don't know if the bandwidth is less than the one with the original akitio cable!

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


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Rycco
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jefniro
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September 3, 2017 7:12 am  

Hi! As suggested by Nando (thank you!) I send to you my benchmark that has done with AIDA64, my configurations:

 

- MacBookPro 13" i7 Late 2016 with Touch bar

- Akitio Node

- XFX RX 480 GTR Black Edition (Damn....)

 

 CalDigit Thunderbolt 3 Cable - 2,0 m

Akitio Thunderbolt 3 cable - 0,50 m

memory write:
2464MB/s=2350MiB/s

memory write:
2507MB/s=2391MiB/s

   

Iris Graphics 550

 

 

 

 

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


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nando4
(@nando4)
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September 3, 2017 8:33 am  

@Jefniro,  your 0.5m and 2m cables perform pretty much the same. Your peak 2391MiB/s memory write is slightly higher than the peak I have on file for a Nvidia card for 32Gbps-TB3 here.

It's all good 🙂

eGPU Setup 1.35    •    eGPU Port Bandwidth Reference Table    •    Several builds
2015 15" Dell Precision 7510 M1000M + macOS 10.14 & Win10


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jefniro
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September 3, 2017 8:42 am  
Posted by: nando4

@Jefniro,  your 0.5m and 2m cables perform pretty much the same. Your peak 2391MiB/s memory write ia slightly higher than the peak I have on file for a Nvidia card for 32Gbps-TB3 here.

It's all good 🙂

Good!! Thank you again as always!

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


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jonwatso
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September 3, 2017 10:33 am  

I only noticed a 1% drop in performance via benchmarking (valley) when using my 2M Cable Maters thunderbolt 3 cable. in real world use, there has been no real difference for me. 

2017 15" MacBook Pro RP560 i7 3.1Ghz - 16GB RAM
Akitio Node + Sapphire RX480 8GB (Reference Card)
Dell 4K DELL P2715Q Display


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switch
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September 3, 2017 11:10 am  

PD will still suffer for active cables (lucky for us most laptops don't need more than 60-ish watts). Thanks for real-world numbers on PCIe cables!

2016 15" HP ZBook 15 G3 [Xeon E3-1545M, Iris Pro p580, no dGPU] + [email protected] (Aorus Gaming Box) + Win10pro


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rushvora
(@rushvora)
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September 3, 2017 11:38 am  

I ordered this cable 2 months ago, performance has been the same as the bundled short cable.

 

https://www.amazon.com/gp/product/B01H5QF2TK/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1

late-2016 15" MacBook Pro RP455 + [email protected] (Mantiz Venus) + Win10 // external SSD


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Wunair
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September 19, 2017 8:23 am  

Has anyone tried this CalDigit TB3 cable for the Mantiz Venus? I'm reading that it doesn't work with charging and passing data (one or the other will drop).

Reference

Soon I will add my system & eGPU details or a build link to this my signature to give context to my posts


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jefniro
(@jefniro)
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November 3, 2017 9:23 pm  

My 2m thunderbolt 3 cable from Caldigit is burnt!! It doesn't work anymore, if I connect my Node troughs this cable the system says to me that I need to connect my device to a Thunderbolt port. Check the image!

 

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


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ed_co
(@ed_co)
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December 1, 2017 12:27 am  

What did you get jefniro? Caldigic again? Or tried another brand?

mid-2017 Macbook Pro RP560 + MSI GTX1080Ti GAMING [email protected] (Mantiz Venus) + macOS10.13.5 & Win10


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jefniro
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January 26, 2018 3:41 pm  

They have changed it because the warranty, I have paid only the shipping costs because they wanted the damaged cable back.

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


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ed_co
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