The double-sided copper strip porous heat dissipation structure reduces the high temperature generated during operation and makes the performance more durable. Small in size, easy to plug and unplug, multiple PCIE interfaces on the motherboard can test multiple SSDs at the same time. Thick gold-plated gold fingers, imitating the image card buckle design, buckle tightly with the image card slot. Four-speed design, suitable for 2230/2242/2260/2280 four sizes of M.2 SSD. Color: black Material: PCB + metal Package Contents: 1*NVME expansion card Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The allowable measurement error is +/- 1-3 cm.