2 in 1 M.2 SSD Adapter for one M.2 PCIe SSD and one M.2 SATA SSD: Install this adapter to motherboard X4/X8/X16 slot, your PC will get 1 x M.2 PCIe slot (Key M) and 1 x M.2 SATA slot (Key B) | Mounting 1 x M.2 SATA SSD to M.2 SATA Slot (at the upper side): Firstly, please connect the adapter SATA port to motherboard SATA port via SATA III cable (Inclued). To be noted, to reach SATA III 6Gbps, motherboard SATA port should be SATA III feature. | Mounting 1 x M.2 PCIe (NVMe/AHCI) SSD to M.2 PCIe Slot (at the below side): M.2 PCIe SSD can operate at PCIe X4 full speed. It's like being installed directly on the motherboard, and the speed is basically unaffected. Support PCIe 4.0/3.0 M.2 SSD. No capacity limitation, support 2T/4T capacity SSD | Support PCIe X4 (64Gbps) Full Speed: To reach PCIe 4.0 X4 (64Gbps) full speed, CPU and motherboard PCIe slot and M.2 PCIe SSD should all be PCIe 4.0 feature. (Noted: Intel 11th Gen and above CPU support PCIe 4.0) | Support OS booting from PCIe SSD: Need to reinstall OS, and setup BIOS/UEFI booting from this M.2 PCIe SSD. (Noted: Some motherboards too old to setup OS booting from M.2 PCIe SSD. Additionally, Windows 7 may not support OS booting from M.2 PCIe SSD. In this case M.2 PCIe SSD can be used as storage disk) | M.2 SSD as Storage Disk: Brand new M.2 SSD need to be Initialized and formated before PC host recognize it | OS compatibility: Plug and play in Windows 11/10/8/Linux/Mac OS. (Noted: Windows 7 do not have native NVMe driver, so can not support M.2 PCIe SSD) | 2 sets of aluminum M.2 Heatsink: 5°C- 20°C cooling effect (Varies depending on the environment) keeps M.2 PCIe SSD under good performance even full-load operation | Included Accessories: 12cm Regular Profile Bracket, 8cm Low Profile Bracket, Installation kits (Thermal Pad, M.2 Screw, SSD Standoff and Screw Driver, Rubber bands, Metal clips) | This product pass FCC and CE Certification. Full refund within 30 days for whatever reasons. No Questions Ask! 18-month warranty, covering all quality problems - we’ll offer you a free replacement or full refund.