The Content Engine 590 (CE-590) is a high-end Content Engine that services Internet service providers and large enterprise networks. The Content Engine sits on the WAN edge between your large enterprise or service provider network and the Internet and is designed to handle DS-3 traffic at 45 Mbps speed.The CE-590 has two internal 36-gigabyte (GB) Ultra2 LVD SCSI hard drives and an external SCSI port for attaching a six-drive Cisco Storage Array that increases the Content Engine storage capacity by an additional 108 GB (6 x 18 GB). In addition, the CE-590 has two 10/100BaseT Ethernet/Fast Ethernet ports with RJ-45 receptacles.