The RB493G has nine Gigabit ethernet ports, three miniPCI slots, and two switch chips, so the ethernet ports can be connected together in two switch groups for wire speed throughput.

The RB493G also has a USB 2.0 port and a microSD card slot for adding more storage or a 3G USB modem for backup connectivity.

The heart of this device is a high performance Atheros AR7161 CPU and it features 256MB of built in RAM. RB493G includes RouterOS - the operating system, which will turn this powerful system into a highly sophisticated router, firewall or bandwidth manager.

Product specifications: 
Ethernet Output: 
RB493G @680MHz (2 port test) 64 byte frames 512 byte frames 1518 byte frames
IP Firewall Conntrack Mode Mbps Fps Mbps Fps Mbps Fps
off off Bridging 76.9 150200 595.15 145300 1220.47 100500
on off Routing 52.38 102300 396.08 96700 1035.88 85300
on off Bridging 44.95 87800 353.08 86200 947.23 78000
on on Routing 39.68 77500 300.24 73300 823.36 67800
on on Bridging 29.9 58400 232.24 56700 660.63 54400
  1. All throughput tests done with Xena Networks specialized test system and RouterOS v5, according RFC2544, with Ethernet frame sizes 64, 512, 1518 bytes.
    Each board is tested with specified number of Ethernet interfaces, to ensure optimal load on hardware.
  2. Values in Italics indicate that the maximum possible throughput was reached, limited only by ethernet ports themselves.