Compatibility | MSA Compliant; Cisco - 3660 Router; Cisco - Supervisor Engine 1A; Cisco - 2691 Router; Cisco - 3661 Router; Cisco - 3662 Router; Cisco - 3725 Router; Cisco - Supervisor Engine 1; Cisco - MSFC1 (Multilayer Switch Feature Card); Cisco - Optical Services Module - OSM; Cisco - Supervisor Engine 2; Cisco - Supervisor Engine 2U; Cisco - Supervisor Engine III (WS-X4014); Cisco - Supervisor Engine IV (WS-X4515); Cisco - Supervisor Engine V (WS-X4516); Cisco - MSFC2 (Multilayer Switch Feature Card) |