ASA5550-K8: Cisco ASA 5550 Adaptive Security Appliance, 8 GE + 1 FE, 4 GE SFP, 5000 IPsec VPN Peers, DES

If you need the ASA 5550 with the DES license, that is the ASA5550-K8.

Hardware and VPN peer counts match the 3DES/AES bundle.

ASA5550-K8 specifications: Max firewall throughput Up to 1.2 Gbps; concurrent connections 650,000; new connections per second 33,000; Integrated I/O 8 GE + 1 Fast Ethernet; expansion None; memory 4 GB; form factor 1 RU; license DES; part of the Cisco ASA firewalls product line.