Controller: 1860 main controller Port type: 4 8-Pin RJ45 interfaces PCIe bus support: PCI Express v2.1x4; compatible with for x8 and x16 Port rate support: 10Mbps/100Mbps/1000 Mbps Operating environment temperature: 0to 70 (32to 258) Storage humidity: 90% non-condensing relative humidity at 35 Supported operating systems: for Windows 7, 8.1, 10, Windows Server 2008/R2, Windows Server 2012/R2, Windows Server 2016/R2, Windows Server 2019/R2, Linux SLES 11/12, CentOS/rhel 6.6-7.4, Ubuntu 14.04/16.10 (The product appearance and printed words may vary depending on the batch, but this does not affect use) Color: As shown Material: PCB 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.