Four pieces in stock.
Good price. Fullly tested.
SPA Interface Processor-400, Contral prcessor, plug in module

The Cisco 7600 SIP-400 helps enable high-performance, intelligent wide- and metropolitan-area network (WAN/MAN) services. Enterprises and service providers can take full advantage of the increased scalability, performance, and rich features offered by the Cisco 7600 SIP-400, along with the many options for WAN
Aggregation and connectivity offered in the SPA/SIP portfolio. The Cisco 7600 SIP-400 accepts up to four Cisco SPAs, including ATM, packet over SONET/SDH (POS), Ethernet and Circuit Emulation over Packet (CEoP), BITS Clocking support, and WAN/MAN connectivity.