Using for 82599EN chip 10G network controller. Addresses the high requirements of next-generation data by delivering the flexibility of virtualization, the flexibility of LAN and SAN networks, and proven, reliable performance. Driver supports for FreeBSD, Linux, ESXi, Win7 / Win-server2012 / Win-server2008 / Win8 / Win8.1 / Win-server2016 / win10 Supports Receive Side Scaling (RSS), supports IPv 4, IPv 6 protocols, supports jumbo frames up to 15.5K, supports checksum offloading Interrupt throttling control to limit maximum interrupt rate and increase CPU usage Application areas: Any mobile device, desktop, workstation, value server or industrial designed network equipment with space constraints. Applicable network: M.2 10G industrial control server network card Main controller: for (R) JL82599EN Bus type: M.2 B+M KEY Media interface: 1 x SFP+ fiber optic LC Transmission rate: 10GbE/1GbE Network topology: IEEE 802.3: 10GBASE- (E10G41BFSR, E10G42BFSR), 10GBASE-LR (E10G41BFLR) SFF-8431: 10GSFP+Cu (a.k.a. Direct Attach) X520 Adapters with SFP+ connections support 10GBASE-, 10GBASE-LR and SFP+ Copper Direct Attach physical media. Management features: IPMI pass-through via SMBus or NC-SI, iSCSI boot, , PXE remote boot, VLAN filtering : for FreeBSD, Linux, ESXi Win7/Win-server2012/Win-server2008/Win8/Win8.1/Win-server2016/win10 Working temperature: 0℃-55℃(32℉-131℉) Storage temperature: -40℃-70℃(-40℉-158℉) Storage humidity: 90% non-condensing relative humidity at 35℃ Colour: As Shown Material: PCB Package Contents: 2 x M.2B+MX520 Single Port SFP+ Industrial Network Card 2 x CD-Driver 2 x Flexible Network Cable (FPC) 2 x Short Iron Piece / 2U Small Chassis Applicable 2 x English instruction man 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.