PE217-4IR is a 4-port SATA III (6 Gbps) to PCI Express x1 Gen2 Host Card with Serial Advantage HCi controller, bridges PCI Express Gen2 x1 to four ports of Serial 6Gbps, enables Serial PHY up to 6Gbps high speed interface. Compliant with Serial Specification 3.1. Supports communication speeds of 6 Gbps, 3 Gbps, and 1.5 Gbps. Supports 0, 1, 10. Supports four SATA ports Supports AHCI 1.0 programming interface Supports Native Queuing (NCQ) Supports Port Multiplier based switching or based switching. Supports Partial and Slumber Power Management states. Supports Staggered -up. Mode:PE217-4IR Number of Device:4 internal I/O Controller:MARVELL 88SE9215 Bus Type:PCI Express V2.0 Compatible Device Type:4 SATA SSDs Interface:1* SFF-8087 Drive Connector:1* SFF-8087 Host Connector:PCle x1 Humidity:0% - 90% Operating Temperature:0 to 50(32 to 122) Storage Temperature:-10 to 65(14 to 149) Product Dimension:116mmx69mm Product Weight:46g Color:As Shown Material:PC Package Contents: 1 * For Card Only the above package content, other products are not included. Note: Light reflection 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.