10Gbps Dual LAN Card for QNAP TS-473/673/873 This is a dual-port 10GbE network card equipped with the Intel X540-AT2 chip. The manufacturer is Inspur, the world's third-largest server share holder. Compatible with PCIe expansion for QNAP TS-473, TS-673, and TS-873. *When installing on TS-673 or TS-873, please replace the current low-profile bracket with the included full-size bracket. By expanding, you can add dual 10Gbps ports. SMB multi-channel or port trunking allows for a maximum connection performance of 20Gbps (requires a compatible switching hub). Of course, it also supports PCIe expansion for desktop PCs, etc. *Please research compatibility with your motherboard yourself. Due to the rise in purchase prices, it has become difficult to sell at the previous price, so we have increased the listing price. We appreciate your understanding. While there is a possibility of a price reduction at our discretion, we generally cannot accommodate price negotiations.