Bus Type: PCI Express 1.1 (2.5 GT/s) With Low Profile Compatible with PCI-E 1X, 4X, 8X, 16X slot Supports Windows 2003 Server, Vista, Virtual Server 2005, Red Hat Enterprise Linux 4 or later, Professional 9.2 or later, FreeBSD 5.X or later Supports PEX Product Type: Gigabit Ethernet Card Network Technology: 10/100/1000Base-T Host Interface: PCI Express Interfaces/Ports: 1 x RJ-45 Features: Intel 82574L Gigabit Ethernet Controller: High performance and reliability; low power Data Rate Supported per Port: 10, 100 & 1,000 Mbps Bus Type: PCI Express 1.1 (2.5 GT/s) Bus Width: x1 lane PCI Express operable in x1, x4, x8, x16 slots Bus Speed (x1, encoded rate): 2.5 Gbps uni-directional; 5 Gbps bi-directional Connectors: RJ-45 Interrupt Levels: INTA, MSI, MSI-X IEEE Support: 802.3z Typical Power Consumption: 1.9W LED Indicators: LINK/ACTIVITY LED: off = NO LINK; on = LINK; blinking = ACTIVITY SPEED LED: off = 10 Mb; green = 100 Mb; yellow = 1000 Mb Dimensions (W x L x H): 2.181 x 4.696 x 4.725 inch / 5.53 x 11.92 x 12 cm Plug and play Color: green Material: ABS Package Contents: 1 x Network Card 1 x Short Bracket 1 x CD 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 to be slightly different from the real thing. Measurement may vary by +/- 1-3 cm.