Product name: Desktop PCI-E to SATA3.0 expansion card Main chip: asmedia ASM1061 Description: Extend 2 SATA3 ports from a computer with PCI-Express slot Comply with PCI-Experss v2.0 specification and Serial 3.0 specification Supported data transmission speed can reach 6.0Gbps, 3.0Gbps, 1.5Gbps Bus interface: PCI-Express x1 Expansion interface: 2 SATAIII interfaces + 2 ESATA (switched by ) Compatible with SATA (III, II, I) Hard Drives, SSD, etc. Support 4T hard disk System Requirements: Has an available PCI-Express slot Supported Windows(R) XP/Server 2003/Vista/7 /8(32/64 bit)/ 10.8 10.9 (drive-free) Excluding compatibility issues, the speed of SATA3 can be used only when the following three conditions are met It must be matched with SATA3 data cable to achieve the best results PCI-E must have a slot above V2.0. For V1.0, the speed will not exceed 250M. Whether PCI-E is X1 or X16, as long as it is V2.0 version, it can be inserted directly if there is a spare X16 slot. On the X16 slot, refer to the picture above, you can see it after inserting the card. gen1 is working in 1.0 mode. gen2 is the meaning of 2.0 mode The setting of motherboard BOIS: SATA mode should be changed to AHCI. Although some motherboards PCIE are version 2.0, BOIS does not enable high-speed transmission mode by default, ie (gen2 high speed mode) needs to be turned on manually. Colour: black Material: PCB + metal Size: 67x68 mm Package Contents: 1 * PCIE SATA3.0 expansion card Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.