Genuine Lenovo ThinkPad Ethernet Extension Adapter Cable 2.0 Gen 2 Part Number: 4X90Q84427

Works as advertised. OEM adapter.Used it to add an additional Ethernet port to my T495.

I received it in 9 days after ordering. It appears to be genuine Lenovo from packaging materials. I hooked it up to my X1 Carbon gen 6 and it is working great! It does have indicator lights where the cable hooks in.

I ordered this to connect my external drive to my router that does not have a USB port but I forgot to order a female to female adapter. I just wasted $ and i am going to have to install the drives in a computer case and set it up as a (really) poormans NAS.

funciona a la perfección, sin necesidad de instalar drivers o hacer configuraciones de software

It works perfectly. The only thing is, the adjacent usb-c port on my Thinkpad T490s became inaccessible when this ethernet adapter (as designed) was plugged in. So, I cut off almost the entire left side of the rubber+plastic housing. Now I can use both the ethernet adapter and the extra usb-c port. I highly recommend doing this. Use a rigid razor sharp blade to cut off 1/2 to 2/3 of the housing, then gritty sandpaper, then fine sandpaper. Lenovo, at least just design an adapter that fits. You don't even need to redesign the laptop. Otherwise, rational customers will chop off the left side of the housing of your product and be correct and justified in doing so. (end rant)

New Lenovo doesn't have an Ethernet port? You still need to hook up to an Ethernet port for some tasks? You need this, it's made by Lenovo it does what it is supposed to.

I had a gen1 for a previous laptop, but needed this gen2 for a newer laptop.

Make use of the built-in Ethernet port on Gen 7 X1 ThinkPad carbon. Does not leave room to use the immediately adjacent USB-C port but not sure if any adapter would let you do that. Does not obstruct the power USB-C port.