"Cables to Go's Cisco(R) Compatible CAB-SS-449MT is designed for the WIC-A/S WAN interface card, and features Cisco`s new, compact, high-density Smart Serial connector. This cable has a male 26-pin connector on the Cisco Smart Serial end and a male DB37 connector on the network end. With Cisco(R) OEM compatible cables from Cables to Go, you get the fit and functionality of a manufacturer's cable with greater convenience and a lower price. Cisco(R) Compatible cables are guaranteed to comply with Cisco's rigid standards for original manufactured cabling specifications. Connectors: 26-pin to DB37 Male. Equivalent to Cisco Part Number CAB-SS-449MT. Mode: DTE. Compact, high-density Smart Serial connector. Provides the fit and functionality of a manufacturer's cable. Offers greater convenience for customers at a lower price. Designed for the Cisco WIC-A/S WAN interface card. Due to the fact this item is a closeout we cannot accept returns. Note: Cisco(R) is a registered trademark of Cisco Systems, Inc. AccessPro and Smart Serial may be trademarks of Cisco Systems, Inc. This product is not manufactured or endorsed by the Cisco Systems, Inc."