PCI-E 4x Express To 2 Ports USB 3.1 Additional 10Gb/S Expansion Card Adapter Description: ASM1142 origin chip, stable performance, reliability 120mm full height partition, suitable for standard 4U chassis SATA 15PIN power interface, adequate power supply, more stable performance PCI-Express 4X slot, more bandwidth Supports USB hot swappable device feature, specifically developed for faster, faster personal computers, consumer electronics and communication devices Specification: Product Name: PCI-Express 2 USB3.1 Expansion Card Model: LA31-12U-V1.0 Chip: ASM1142 Transmission rate: USB2.0 mode: up to 480Mbps; USB 3.0 mode: up to 5Gbps; USB3.1 mode: up to 10Gbps Compatibility: Backwards compatible with USB 2.0, USB 3.0 and PCI-Express 1.0 Current voltage: each USB3.1 interface output power: 5V / 2.0A. External Power Supply: 4-pin power supply can be accessed to provide more power Operating System: Supports Win7/WIN8/WIN8.1/WIN10 operating system Support slot: PCI-E 4X, PCI-E 8X, PCI-E16X The package includes: 1x adapter card 1xCD