Barracuda Networks Spam Firewall 400. Data transfer rate (max): 100 Mbit/s, Firewall throughput: 0 Mbit/s. Number of users: 1000 user(s). Connectivity technology: Wired. Quarantine storage: 50 GB, Message log storage: 10 GB. Dimensions (WxDxH): 427 x 356 x 43 mm, Weight: 5900 g