Product Code:X520-SR2 Ports: SFP+ * 1 Bus Type: PCI-E X8 Chipset: for JL82599EN Transmission Rate: 10000Mbps Network Type: 10-Gigabit Fiber Ethernet Transmission Distance: Dual-mode: 62.5um 220m, 50um 550m. Boot Rom: Support BOOT ROM Indicators: 4 x led indicators for link/Activity Mode status Work for: Server, Workstation Network Standard: IEEE 802.1p,IEEE 802.1Q, IEEE 802.2, IEEE 802.3ac, IEEE 802.3az, IEEE 802.3x, IEEE 802.3z, IEEE 802.3ad Management Features: PXE remote boot, ISCSI boot, VLAN filtering, FCOE, ROS, ESXI Support system: /7/8/10(32&64bit), SCO UnixWare* 7.x, Open Unix* 8.0, Novell ODI*, Novell Netware*,SUSE Linux Enterprise Server* 9.0, Enterprise Linux* 4.0, Linux*, FreeBSD*,Sun *, DOS*, ESX* Colour:green Material:PC+Metal Package Contents: 1 x Network Card 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.