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ADT-Link Launches USB4 to PCIe 4.0 Bridge Board

TheLostSwede

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USB4 hasn't exactly taken off as yet, largely due to a shortage of devices in the market and with a limited number of device controllers, the competition in the market is also slow. With Thunderbolt compatibility, there are plenty of USB4 compatible hosts out there though, even though you only get 32 Gbps rather than 40 Gbps of data throughput when a USB4 device is connected to Thunderbolt 3 or 4, although Thunderbolt 5 will allow for the full 40 Gbps. A company called ADT-Link has launched a product it calls the UT3G which is pretty much a retail ready bridge solution that allows techies and tinkerers to try out whatever PCIe devices they have over USB4. The adapter has a full-length PCIe x16 slot, but it's limited to a four lane PCIe interface which is compatible with PCIe 4.0, albeit not at the full 64 Gbps that such an interface can deliver.

In addition to the USB4 Type-C port on the PCB there's a standard 24-pin ATX power supply connector for power, which means that this isn't really a portable solution. However, the company has tested the UT3G with various graphics cards from both AMD and NVIDIA to make sure you can use it as an external graphics card dock. The UT3G has also been tested to be compatible with Windows, Linux and macOS, although macOS is limited to AMD GPUs. The board is built around the ASMedia ASM2464PD USB4 to PCIe 4.0 bridge and this shouldn't come as a surprise, as so far this is the only such device controller. ADT-Link doesn't appear to be selling the UT3G to consumers, but it can be picked up online from DFRobot starting at US$129 for a single unit.



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It's not really a new product, as it was launched some months ago. It's just that DFrobot listed it now. Aliexpress has it listed for at least two months (maybe more, but then I was thinking of buying it). It's also been on Amazon for some weeks.
DFrobot has recently listed the ADT-Link UT3G USB4 to PCIe x16 eGPU adapter featuring a PCIe Gen 4.0 x4 slot with 40 Gbps of bandwidth on their website.
 
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Seems like it could be a fun toy to hook up to some single board like a Raspberry. But a bit too pricey and cumbersome methinks. If it was portable (i.e no need for a 24-pin) it would actually be more useful.
 
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I've used ADT-Link Risers and those are pretty good and many flavors.
 

TheLostSwede

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It's not really a new product, as it was launched some months ago. It's just that DFrobot listed it now. Aliexpress has it listed for at least two months (maybe more, but then I was thinking of buying it). It's also been on Amazon for some weeks.
Fair enough, it's only made the news now though.
 
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Been eyeing these for awhile (Also, 'been following "eGPUs" well-before www.eGPU.io and Reddit even existed.)

Just recently got a cheap 10th Gen Intel 14" laptop w/ TB3; hoping to find a sub-$100 Thunderbolt E-GPU solution. [we're not quite there, yet]



For the adventurous, an (angled) 'on-plug ATX DC-DC PSU*' + a AC-DC+12V 'brick' would be a slightly more compact arrangement.
(*Looks like 3.3V and 5V are pulled from the ATX plug, not just +12V.)


IMO,
If you were looking at slotting in anything large and powerful, setting/attaching this kind of adapter to a full-size ATX PSU w/ custom-length cables, wouldn't be too much 'bulk' over 3+ slot 1ft+ long GPUs.
Anyone w/ a 3D printer or woodworking skills could probably DIY a snazzy chassis/enclosure around this. (extra bonus points for metalworking a DIY chassis)
 
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Awesome, paves the way for cheap eGPU solutions and goes to show how overpriced regular eGPU boxes are.
 
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Awesome, paves the way for cheap eGPU solutions and goes to show how overpriced regular eGPU boxes are.
Agreed, though you can pick up TB3 eGPU enclosures secondhand for not much more than just this board so I'm not sure how much it'll actually help lower the price entry point :(
 
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