The Dell FD2FJ is a 5-inch backplane I2C signal cable designed for 1U rack-mounted PowerEdge servers, specifically the R320 and R420 generations. This cable provides low-speed serial communication between the system backplane and onboard management controllers, supporting I2C protocol for thermal monitoring, power management, and hardware status reporting. The short 5-inch length accommodates the compact internal spacing of these single-socket and dual-socket platforms. Compatible with Dell PowerEdge R320 (single-socket Xeon E5-1600/2600 series) and R420 (dual-socket Xeon E5-2600 series) servers, this cable is essential for proper system management and diagnostics. Typical deployment scenarios include data center environments where reliable server health monitoring and remote management capabilities are required.This refurbished component has been tested and is guaranteed fully functional, available via quote.