Features: This product supports NVMe M.2 NGFF interfaces to Slimlines SFF-8654 , but buyer need to purchase additional SSF8654 interfaces to switching to other devices for use. The common way is to use adapter card with SFF-8654 to SFF-8639 cable to hard drive. Important to note before purchasing: 1. Please make sure to determine the PIN number of the Slimlines SFF-8654 interfaces on device. There are two types of Slimlines SFF-8654 interfaces: 38PIN and 74PIN. This adapter card with a 38PIN interfaces! The Slimlines SFF-8654 interfaces is just the interfaces shape, and the data protocol of the interfaces determine by your mainboard. The SFF-8654 interfaces of this adapter card is NVMe protocol. This product needs to pluginto interfaces that supports PCIex4 NVMe M.2 NGFF SSD on your computer in order to use it. M.2 interfaces of PCIEx2 andSata protocol cannot be used Specifications: Material: Plastic Type: NVMe M.2 NGFF to Slimlines SFF 8654 Adapter Card Interfaces：38PIN Size: Mixed For：PCIex4 Drive Package Includes: 1PC PCIex4 to Slimlines SFF 8654 Adapter Card note: Due to the problemsof lighting effects and shootingangles, there will be tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.