Features: 1. Applicable to a variety of places, as you like (office, Internet cafe, monitoring, data server, etc.). 2. For Intel 82571 master chip. 3. Support multiple systems: for Microsoft Windows Server 2003, Microsoft Windows 2000, etc. 4. 2 port interface, 10, 100, and 1000 Mbps speed network, fully meet your needs. 5. Gold-plated PCI-E interface, stable and durable. Specification: Controller Processor: for Intel Ethernet Controller 82571EB Load balancing on multiple CPUs Interrupt moderation Bus width: x4 lane PCI Express, operable in x4, x8, x16 slots Support for most network operating systems (NOS) RoHS compliant, lead-free technology For Intel PROSet Utility for Microsoft Device Manager Advanced cable diagnostics Connectors: 2x RJ-45 Data rate(s) supported per port: 10, 100, and 1000 Mbps Bus type: PCI Express 1.0a EEPROM-SPI and single EEPROM support: Yes Interrupt levels: INTA IEEE support: 802.1p, 802.1Q, 802.2, 802.3ac, 802.3az, 802.3x, 802.3z, 802.3ad LEDs: 4 (1/port, link and speed) solid and blinking Network Operating Systems (NOS) Software Support: For Microsoft Windows Server 2003, Enterprise, Datacenter (32- and 64-bit) For Microsoft Windows 2000 For Red Hat Linux 2.4x or later (32- and 64-bit) For FreeBSD 4.x or later For Novell Netware 5.x, 6.x For Sun Solaris x86, OS 8 and later For SCO Open Server 5, OpenUNIX 8 Size: about 130*120*20mm/5.12*4.72*0.79in Package List: 1 * Network Card 1 * Driver CD 1 * Low Profile Bracket 1、 Applicable to a variety of places, as you like (office, Internet cafe, monitoring, data server, etc.). 2、 For Intel 82571 master chip. 3、Support multiple systems: for Microsoft Windows Server 2003, Microsoft Windows 2000, etc. 4、2 port interface, 10, 100, and 1000 Mbps speed network, fully meet your needs. 5、Gold-plated PCI-E interface, stable and durable.