Siemens 6GK5408-0PA00-8AP2 is the SCALANCE PE408PoE port extender for a compatible XM-400 managed modular switch. It adds copper Gigabit Ethernet connections with Power over Ethernet capability. The available PoE power is constrained by both the per-port and total PSE limits. A separate power supply is required for PoE operation. The extender integrates with the host's modular network arrangement.