The Intel Cisco UCSC-PCIE-IRJ45 V01 4-Port Ethernet Server Adapter is a high-quality network card designed for servers and networking devices. With four external Ethernet interfaces (RJ-45), this adapter provides fast and reliable connectivity for multiple devices. Manufactured by Cisco, a trusted brand in networking technology, this adapter is compatible with PCI and PCI Express ports, making it a versatile option for various computer systems. Made in China, this unit is a single piece that enhances the networking capabilities of servers and networking devices.