[Sticky] US$218 AKiTiO Thunder2 PCIe Box (16Gbps-TB2)
As per AKiTiO Thunder2 PCIe Box
AKiTiO Thunder2 PCIe Expansion Box
The portable Thunderbolt™ 2 PCIe expansion box provides an additional PCIe slot for systems that do not support or have enough available space for expansion cards. The external Thunderbolt 2 connection allows you to daisy-chain up to 5 additional Thunderbolt devices, making this the ideal plug and play companion especially when you have to take your system with you. Replacing the card is a simple matter of removing three hand tightening screws, so no tools are required.
Model No: AKiTiO Thunder2 PCIe Box
Part No: T2PC-TIA-AKTU (without PCIe card)
Certifications: CE, FCC, Thunderbolt™ technologyCase material: High quality aluminum with metal chassisApplication:
- 1 x PCIe card (see compatibility chart)
- Supports half-length, full-height and double-width cards
- PCIe (x16) slot provides a maximum of 25W
-2x Thunderbolt™ 2 ports
-1x internal PCIe (x16) slot with 4 lane PCI Express interface
- External power adapter (UL, cUL, CE, FCC, BSMI, TUV approved)
- Input: AC 100-240V, 50Hz-60Hz
- Output: DC +12V/5A (60W)
Fan noise level: 23 dB(A)
Dimensions (LxWxH): 9.17 inches x 5.87 inches x 2.99 inches (23.3cm x 14.9cm x 7.6cm)
- AKiTiO Thunder2 PCIe Box
- Power adapter
- Setup guide
GUIDE: DIY barrel plug adapter without soldering ... Used with a desktop ATX power supply [Yukikaze] here
INFO: fitting unlimited length cards by opening the chassis here
Closing the AKiTiO Thunder3 will mean hot air can accumulate. Best is to leave it open OR at least drill holes matching the video card fan position to allow the fans to pull air in. I dressed my Thunder2 up with some black electrical tape around the edges and some sponge in the lower cavity. Looks good enough to leave open.
INFO: 75W can be safely passed to the PCIe slot with an upgraded 90W AC adapter
An AKiTiO engineer emailed me this info, quoted below:
We implemented the x16 PCIe slot although we only use x4 lanes signal that Thunderbolt can support. By spec the x16 PCIe slot is capable of 75W power while the x4 is spec’ed at 25W.. That means, if the user uses a power supply that is big enough, there is no problem that our design can support x16 PCIe card that requires 75W power. That is the reason why OWC’s PCIe Box has the identical PCBAs as ours but they shipped with the 120W power supply.
By the requirement of Intel/Apple, we need to reserve 30W power for the Thunderbolt circuits because it may need to provide power to the bus-powered downstream devices. That’s why we use 60W power supply but we only leave 25W for the PCIe card. For the eGPU application, users do not connect anything else to the Thunderbolt daisy-chain. In such case 10W for the Thunderbolt circuits should be enough and there is 50W to the PCIe card. In order to support 75W power to the PCIe card, users can simply upgrade the power to 90W or larger.