Rumor PCIE 4.0 riser cables on TaoBao

Some PCIE 4.0 riser cables appeared on TaoBao:

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Looks similar like the one ADT-LINK put on their website for some time now:

G402-3 PCIe 4.0 x16 Extension Cable

PCIe 4.0 x16 to x16 adapter for graphics video cards extension.

www.adt.link

 

[riba2233]

Some PCIE 4.0 riser cables appeared on TaoBao:


Looks like the one ADT-LINK put on their website for some time now:

This looks like they use 3M cable. They probably just buy the cable from them and assemble the rest of the riser by themselves.

 

[REVOCCASES]

Yeah, the TaoBao shop is not operated by ADT but some distributor for 3M (besides other cables & connectors).

Not sure if/how this company is linked with ADT but from the pictures both look pretty much the same. Maybe it's some kind of reference design.

 

[lehman]

Does the 3M cable do pcie 4.0? It sure looks like the 3M cables. I have 2 from 5 years ago that have always worked, but I never tried them on a pcie 4.0 system.

 

[REVOCCASES]

I doubt a riser cable from 5 years ago would work with PCIe 4.0

PCIe 4.0 has a much higher bandwidth and requires better shielding / higher quality wiring to work without issues. You can compare this with older HDMI cables which often have issues with HDMI 2.0 or 2.1

 

[BonfireOfDreams]

Very happy that I have a T1 on the way, but the 3.0 riser is a bummer (I know they have one being readied that isn't available yet). I'll be keeping any eye out for any alternatives in the mean time. If someone purchases this I hope they post here & test it ?

 

[lehman]

Looks like the old 3M does work.

Today I tested the PCIe 4.0 compatibility with all A4-SFX generations and here are the results:

Windows 10 crashed with a blue screen directly after the boot logo on the v3 and v4 risers. Only the 3M Twin Axial riser was able to handle PCIe 4.0. I made a 6 hours benchmark run through Futuremark, Valley Benchmark and some games without a problem. So if you have a v3 and v4 case, don't worry just setup PCIe link speed gen3 in UEFI. Currently the performance loss is 0%.

Tomorrow I will do some thermal test on the Ryzen 3700X.

 

[REVOCCASES]

Looks like the old 3M does work.

Very interesting, seems the older 3M riser is really good quality. Thanks for sharing.

 

[Sashby]

Interesting!

If you zoom in on the photos of the ADT G402-3 PCIe x16 4.0 cable it says "GIGA-MEGA 20200709" (Numbers are the batch code referring to manufacture date).

Quick Google search and I found the OEMs website: http://giga-mega.com/en/

They look to be a Chinese company that sources the cables from 3M (some of the photos are of actual 3M products) Quote from website "Utilizing 3M™Twin Axial Cable technology"

Also, Photo from Guangzhou Giga-Mega website,
Corsair One iCUE models folded 3M PCIe cable:

From the website again. Here it's installed in a Corsair One Gen1 (10 series GPUs) because the original cables (were not 3M but the early PCIe3.0 cables like this one) were susceptible to causing artefacts in heavy GPU loads after a certain amount of time from heat. A lot of RMA requests from that can be seen on forums.

 

[riba2233]

Nice find!

 

[thelaughingman]

Looks like the old 3M does work.

I'm using that exact 3M riser (from Dan A4 v4.1) in my build - X570-I Strix and 5700XT, and PCIE 4.0 is fully functioning (16GT/s link speed in hwinfo64)

 

[MarcParis]

Let's hope they did not burn drawing how to build gen 4 riser lol...right now market just seems to know how to build Gen 3...pffff

 

[Kit]

Linkup have gen 4 cables listed, no idea if they're any good though...

LINKUP Ultra PCIE 4.0 Gen4 Riser Cable

linkup.one

 

[MarcParis]

Linkup have gen 4 cables listed, no idea if they're any good though...

LINKUP Ultra PCIE 4.0 Gen4 Riser Cable

linkup.one

You can read some reviews on linkup gen 4 : proper bandwidth but with some performance loss of 1-3% vs Gen 3 mod.

 

[Runamok81]

So, considering that the older 3.0 3M riser cables work on 4.0... then it feels like this really comes down to the quality of the cable, and shielding, right? Is it possible that quality, well-shielded M.2 to PCIe 3.0 adapter would work on 4.0?

 

[REVOCCASES]

So, considering that the older 3.0 3M riser cables work on 4.0... then it feels like this really comes down to the quality of the cable, and shielding, right? Is it possible that quality, well-shielded M.2 to PCIe 3.0 adapter would work on 4.0?

Yeah, seems the 3M riser cables are really good quality. As you said I also think it comes down to high quality EMI shielding and very low resistance of the conductors (wires) in order to get a stable link with that high bandwidth. I have no hardware to test it but I could imagine that one of the ADT M2 riser cables could work if it's just short enough. My assumption: shorter wires means less resistance and longer wires make pretty good "antennas" to pick up EMI. that's only my theory but maybe someone has the hardware to test it...

 

[MarcParis]

Pressure will increase on supplier of pcie 4.0 risers..