Features 1、Using original JMB585 main control chip, high‑speed and stable transmission, strong reliability. 2、LED indicator monitoring. The blue LED indicator is gentle and not harm to your eyes. 3、The blue light is always on when the power is on and the disk is read, and the blue light flashes when reading, and the working status of the hard disk is monitored at any time. 4、Gold‑plated design, scratch‑resistant and wear‑resistant, more stable transmission, compatible with PCI‑E X4, PCI‑E X8, PCI‑E X16. 5、Support multiple systems for OS X/ Windows7/8/10, plug‑and‑play without drive. Specification Item Type: Expansion Card Built-In Interface: PCI-E 4X Output Interface: 5 x SATA3.0 Support Hard Disk: SATA interface hard disk Support System: For OS X/ Windows7/8/10 Installation Method: In-Line PCI-E card slot Size: Approx. 12 x 8cm / 4.7 x 3.1in Package List 1 x Expansion Card 5 x SATA Connect Cable 1 x Bracket