Push more traffic through the same copper infrastructure with a 10G PCIe network adapter designed for practical upgrades. The StarTech ST10GSPEXNB2 adds a single RJ45 Ethernet port and supports 10G, 5G, 2.5G, 1G, 100M, and 10M operation, giving infrastructure teams a clean path to higher throughput without forcing a cabling refresh. Built on PCIe 3.0 x2 and the Marvell AQC113CS controller, this adapter is suited to desktops and servers that need faster access to storage, virtualization hosts, or high-volume file transfers. Support for 16K jumbo frames, VLAN tagging, PXE boot, AVB, and PTP makes it more than a simple speed bump; it is a network interface built for managed environments where latency, provisioning, and traffic segmentation matter. The included low-profile bracket broadens deployment options in compact systems, while Windows, Windows Server, and Linux support keeps integration straightforward across mixed fleets. For teams standardizing on copper and looking for a measured upgrade path, this card delivers the bandwidth headroom to keep critical workloads moving.