b' Features: No driver required, enjoy high speed transmission speed experience. One-piece, indicators, 25V high withstand voltage capacitor, reserve half input margin to prevent insufficient power supply. Suitable for 2.5-inch U.2 or SATA hard disk, if you need to connect to the stata port,you need a seperate external 7pin -sata cable. PCIEX4 is for X8 X16 U.2/SATA dual protocol,support card slot:PCIE X4 for X8 X16 With blue led indicator to know the working status, very easy installation in 2 steps. Specifications: Model: KT048 Material: Metal Baffle + Environmental for Protection Glass Fiber Material Color: Black Hard Disk Interface: for 2.5-inch U.2/SATA hard disk (If you need to connect the SATA port hard disk, you need to connect a 7Pin-SATA cable) Support Card Slot: PCIE X4 Compatible With X8/X16 PCIE: for Power Supply and Data Transmission Support System: for Windows/for Mac, etc. Indicator Status: The indicator lights up in blue after power on Product Size: 153 X 120 X 22mm/6.02 X 4.72 X 0.87 Gross Weight: 114g Note: If you want to use this adapter card with U.2 solid state disk as a system disk, and the computer motherboard must support PCI for express protocol. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Please allow 1-3mm measuring deviation due to manual measurement. Package includes: 1 X PCIE X4 to U.2 Converter 1 X 7Pin SATA Cable 1 X Operation Manual'