The D-Link 6-foot USB KVM cable (DKVM-CU) is compatible with the D-Link DKVM-4U KVM switch, which allows sharing of USB keyboard, USB mouse, and monitor among multiple computers. This cable is designed to ensure optimum signal quality and integrity between the PCs and the switch. The DKVM-CU cables are double shielded with ferrite cores to reduce electromagnetic (EMI) and radio frequency interference (RFI).