The YM-1151E hot-swappable DC power supply modules are designed to be compatible with S5850-32S2Q, S5800-8TF12S, S5850-24T16B Ethernet switches and T5850-32S2Q, T5800-8TF12S TAPs. It can be hot-swapped and replaced without any system down-time offering a seamless and uninterrupted operation, which provides a low-cost, simple solution to the problem of a failure of the internal power-supply of an Ethernet switch.