Features: brand new and high quality. High performance, reliability, and low power use in RTL 8111G dual integrated for Mac + Phy and Serdes chip controllers. Ultra deep, packet buffer per channel lowers CPU utilization. Hardware acceleration that can offload tasks from the host processor. The controllers can offload TCP/UDP/IP checksum calculations and TCP segmentation. Management Features: IPMI pass-through via SMBus or NC-SI, WoL, PXE remote boot, ISCSI boot, VLAN filtering. Supports System: for DOS , for Windows , for Linux, for FREEBSD, for NWSERVER, etc. Specifications: Item Type: Dual-Port PCI-E X1 Gigabit Ethernet Network Card Chipset: RTL 8111G Slot Type: PCI-E X1 Interface: RJ45 X 2 Transmission Rate: 10/100/1000Mbps Material: Plastic Quantity: 1 PC (other accessories demo in the picture is not included) Note: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: (No retail package) 1 X Dual-Port PCI-E X1 Gigabit Ethernet Network Card