Description: 1.Equipped with 5 SATA3.0 interfaces, in line with PCI-E2.0 specification, supports 5 SATA hard disk connections, and the transferrate can reach 6Gbps. 2.The PCI-E X4 interface can be easily expanded as long as the motherboard has a PCI Express X4/X8/X16 slot, plug and play, convenient and fast. 3. Alloy heat sink to ensure stable chip temperature, higher speed and more stable transmission. 4.The 3MM thick gold finger is gold-plated, and the gold finger is connected to the motherboard SATA slot to ensure the integrity of data transmission and stable operation. 5.Using the JMB585 main control chip, the transmission is faster and the heat is lower. 6.Compatible with multiple operating systems: Universal for Windows 7/8/10/Vista/7/8(32/64 bit)/for MAC/for linux and other systems. Specifications: Item name: Expansion card Colour: Black Material: PCB + metal Main control chip: JMB585 Number of interfaces: 5 SATA3.0 Applicable card slot: PCI-E X4 Transfer rate: 6Gbps Product size: 120*116*18mm Installation method: in-line PCI-E card slot interfaces In line with: PCI-E2.0 specification Supports: 16 SATA Hard Disk Connections Working environment: 0-55, humidity 85% Storage temperature: -20-65C, humidity 85% Package Included: 1 x Expansion Card Notes: Note: - There might be little error of size for manual measurement. - The color deviation might differ due to different monitor settings, please kindly understand.