1、Supports 1 M.2PCIe (NVMe or AHCI) SSD and 1 M.2 SATA 6Gbps SSD at the same time. 2、Support PCIEM.2 SSD (NVMe o.r AHCI, Key‑M), PCIE 0 X4 32 Gbps bandwidth 3、Support SATA‑based M.2 SSD (Key‑B / B + M), SATA 6 Gbps bandwidth. 4、Support PCIe Gen3 and PCIe Gen2 M.2 NGFF 110mm, 80mm, 60mm, 42mm, 30mm SSD. 5、PCB 24 X 5 copper holes for effective ventilation and heat dissipation, including 2 heat sinks. 6、Transparent to the operating system, no driver required, compliant with 39Gbps PCI‑Ex 0. 1 x SSD Adapter Card 1 x Bracket 2 x Aluminum Heat Sink 4 x Thermal Silicone Pad 8 x Silicone Ring 1 x SATA Cable 3 x Screwdriver 1 x Screw Set 3 x User Manual 2 x Wipe Package 4 x Screw  Item Type: Adapter CardSupport PCI-E 1.0, PCIe 2.0 and PCIe 3.0 motherboardsSupport SATA-based M.2 SSD (Key-B / B + M), SATA 6 Gbps bandwidthSize: Approx. 144mm / 5.7in58mm / 2.3in