This adapter turns your motherboard's PCIE X4/X8/X16 slot into an M. 2 Key M slot for M. 2 NVMe SSD installation. PCIE X1/PCI slots aren't supported. It comes with heatsinks that cool M. 2 SSDs by 5 20°C.; Works with PCIE 4.0 / 3.0 M. 2 NVMe SSDs. For full PCIE 4.0 X4 speed, your CPU, slots, and SSD must all support it.
Note: CPUs below 11th gen don't support PCIE 4.0.; No capacity limit for M. 2 NVMe SSDs (2T, 4T work). Supports 2230/2242/2260/2280 sizes. New SSDs need initialization and formatting. M. 2 SATA SSDs aren't supported.; Compatible with Windows 11/10/8, Linux, and Mac OS. Support OS boot from NVMe SSD, except on some old motherboards (usable as storage then). Windows 7 lacks native NVMe driver; download from Microsoft or SSD manufacture site.; Includes 12cm regular and 8cm low profile brackets for any PC frame. FCC and CE certified. Get lifetime tech support contact us for troubleshooting.