- Tektronix: Recommended Equipment for Ethernet Testing - 10, 100, 1000 Base T
- IP and Ethernet testing Tool -- "... ("IET") is an ethernet bridge addon for testing of network applications. It emulates network error conditions like packet loss, delay and bandwidth restraints. IET focuses on testing of network applications."
- Ajays USB 2.0 Host-to-Host Debug Device -- ehci debug cable
- umockdev: mocks hardware devices for creating unit tests for libraries and programs that handle Linux hardware devices.