Support M-key NVME PCIe protocol SSD ( M.2 SATA protocol SSD is not supported). Super-thick and gold-plated SSD contact surface increases the heat conduction medium to dissipate heat efficiently and is more durable. Support PCIe 4X/8X/16X, PCI-E 1x and PCI slot are not supported. Updated: The PCIe adapter updated and support PCIe 4.0 now Support high-speed and large-capacity storage interface, the speed is determined by the host end of the computer motherboard. Come with heatsink. Support 2230/2242/2260/2280/8700mm M-Key SSD. Specification: Item name: JEYI M.2 to PCI-E Adapter Card Material: PCB Power supply: PCI-E power supply Item size: 14 * 6.3 * 0.4cm / 5.51 * 2.48 * 0.16in(L * W * H) Item weight: Approx.21.4g /0.75oz Package size: 17 * 11 * 3cm / 6.69 * 4.33 * 1.18in(L * W * H) Package weight: 102g /3.6oz Package list: 1 * M.2 to PCI-E Adapter Card 1 * Profile 1 * Screwdriver 1 * Bag of Screws 1* heatsink 1* short SSD holder, 2* SDD ruber band 1* thermal pad 1* Cabinet screw >