SD-PEX50055 2 Port USB 3.0 and 2 Port SATA III PCIe 2.0 x4 Controller Card Green grey

PCI-e x4 cards cannot be inserted into a x1 slot. x4 slot is longer slot than the regular x1 slot. Usually x4 slots can be found on newer motherboard ASMedia ASM1061PCI-Express 2.0 Interface Backwards Compatible to PCI-e 1.0a with Data Transfer Rate up to 2.5Gbps Supports Standard and Low-profile Desktop Computers To achieve USB 3.0 high speed performance, a PCI-e V2.0 slot is required USB 3.0 Interface: Compliant with Universal Serial Bus 3.0 Specification Revision 1.0 USB 3.0 Super-speed (5Gbps) Host Port, Backward Compatible with USB 2.0 , High-speed (480Mbps) Interface, Full-speed (12Mbps) Interface, Low-speed (1.5Mbps) Interfaces Does not need floppy power feed for SATA ports to function. ***Can support 4 or More HHDs with 1 SATA port using Port Multiplier for Windows OS.Mac OS and Linux OS limit is 4 Hard drives. Catch up to speed with modern devices with this Syba SD-PEX50055 2 Port USB 3.0 and 2 Port SATA III PCI-e 2.0 x4 with Full and Low Profile bracket Etron and AS Media Chipset. Has both Etron EJ168A and AS Media ASM1061 chipset. Designed with 2 USB 3.0 Ports and 2 internal SATA III ports in one PCI-Express card with a Unique HDD activity LED indicator circuit design! Passes the TRIM command for effective use with your SSD drives.