xqjtechPCI-E PCI Express 3.0 X4 to NVME M.2 NVME to NVME SSD PCI-e 3.0 x 4 Host Controller Expansion Card Support M Key SSD Type 2280 2260 2242 2230 Adapter Converter

Works great for Gen 3 NVMe M.2 SSDs when your motherboard supports PCIe 3rd generation but has no M.2 connector.

This was a very affordable means to add an NVMe drive to my old 2009 Mac Pro 4,1 that has been flashed to a 5,1. There are no drivers needed. Just attach your NVMe drive to the adapter card and install it in a free PCI slot and you're good to go. It has a small profile so it didn't interfere with any of the other cards I have installed.

Exactly what I was looking for to add NVME speed to my 4,1 -> 5,1 CMP.I would definitely recommend it!

This worked great in my 5,1 Mac Pro with the Samsung 512GB EVO 970 Pro running macOS Big Sur on it. Increased boot times and transfers speeds tenfold.

Need to add a nvme to my Mac Pro 4.1. Easy install and was up a running in a few minutes.

Transfer the files are very slow

The m.2 fits into the groove on the spacer and the screw goes on the bottom

Used with. Crucial NVME SSD in 5,1 Mac Pro. Works great at 1,300 mbs.