More info:

RB493G

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

Details
Product code RB493G
CPU speed 680Mhz
Current Monitor No
RAM 256MB
Architecture MIPS-BE
LAN ports 9
Gigabit yes, all 9
MiniPCI 3
USB 1, external power required
Power Jack 10..28v
802.3af support no
PoE 10..28V DC
Voltage Monitor Yes
CPU temperature monitor No
Dimensions 105mm x 160mm
Operating System RouterOS
Temperature range -30C +60C
RouterOS License L5

Ethernet throughput

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
    Notes:
  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.

5VUSB

5VUSB
  • USB power injector
  • For RB411UAHR
  • For RB493G

R52

R52
  • 802.11a/b/g
  • 19dBm power
  • 5GHz or 2GHz
  • Two U.fl connectors

R5nH

R5nH
  • 5Ghz miniPCI
  • 802.11a
  • High power

R52N

R52N
  • 802.11a/b/g/n
  • 25dBm power
  • 5GHz or 2GHz

R52H

R52H
  • 802.11a/b/g
  • 25dBm power
  • 5GHz or 2GHz
  • two U.fl connectors

R52Hn

R52Hn
  • 802.11a/b/g/n
  • 25dBm power
  • 5GHz or 2GHz
  • two MMCX connectors

R52nM

R52nM
  • 802.11a/b/g/n
  • 23dBm power
  • two MMCX connectors

R2N

R2N
  • 802.11b/g/n
  • 24dBm power
  • 2GHz

R5H

R5H
  • 5GHz miniPCI
  • 802.11a

24HPOW

24HPOW
  • 24V 1.6A
  • For long cables