Linksys WRT54G series - Wikipedia, the free encyclopedia http://en.wikipedia.org/wiki/WRT54G#WRT54GL
3 of 6 12/24/2007 4:35 PM
Version CPU
speed RAM Flash
memory S/N
Prefix Notes
1.0 200
MHz 16
MB 4 MB CL7A
New model line, released after the version 5 WRT54G, which returns to a Linux-based OS as opposed to the VxWorks firmware.
SpeedBooster is not enabled in stock firmware, however third-party firmware will enable the feature. The hardware is essentially
the same as the WRT54G version 4.0. One alteration is that the internal numbering scheme of the 4-port switch changed in this
model, from 1 2 3 4, to 3 2 1 0.
1.1 200
MHz 16
MB 4 MB CL7B
CL7C
In June 20, 2006, this version was shipping with firmware revision 4.30.7. This pre-loaded firmware allows the user to upload a
4MB firmware image, whereas the pre-loaded firmware on version 1.0 limited the image to 3MB. Firmware version 4.30.11 is
now available for both hardware versions. Fully supported by Tomato, openwrt, and DD-WRT.
1.1 200
MHz 32
MB 8 MB CO61 T-Mobile Special Edition WRT-54GL (Renamed WRT54G-TM).

WRTSL54GS

WRTSL54GS is similar to the WRT54GS
while adding additional firmware features and a USB 2.0 port (referred to as StorageLink) which can be used for a USB hard disk or flash drive.
[3]
Unlike other models, the WRTSL54GS only has one antenna.
Version CPU
speed RAM Flash
memory S/N
Prefix Notes
1.0 264
MHz 32
MB 8 MB CJK0 Released after the WRT54GS and WRT54GL. Uses Linux-based OS. Includes SpeedBooster support, additional firmware
features, and an external USB 2.0 port (StorageLink) for network storage. Uses 8 MB of Intel TE28F640 flash with a Broadcom
BCM4704KPB processor and Broadcom BCM5325FKQM Ethernet switch.
1.1 264 32
MB 8 MB CJK11 Change from BCM4704 rev 8 to BCM4704 rev 9 uncomfirmed

WRT54GX

WRT54GX comes with SRX (Speed and Range eXpansion), which utilizes True MIMO technology by Airgo Networks. It has 3 antennas and was once marketed as a 'Pre-N' router,
with 8 times the speed and 3 times the range over standard 802.11g routers.
Version CPU speed RAM Flash memory S/N Prefix Notes
1.0 300 MHz 16 MB 4 MB KBG5? Wireless-G Broadband Router with SRX. Uses the Broadcom 4704 Chipset
2.0 200 MHz 32 MB 8 MB KIO1? Wireless-G Broadband Router with SRX. Uses the Realtek RTL8651B Chipset

WRT54GP2

WRT54GP2 has 1 or 2 antennas, and a built-in analog telephony adapter (ATA) with 2 phone lines, but only 3 network ports.
Version Locked to RAM Flash memory S/N Prefix Notes
EA Engin xx MB x MB CJJ0 Wireless-G Broadband Router with 2 Phone Ports. Uses the Marvel Chipset

WRT54GX2

WRT54GX2 has 2 antenna, and was advertised to have 6 times the speed and 2 times the range over standard 802.11g routers.

WRT54GX4

WRT54GX4 has 3 moveable antennas, and is advertised to have 10 times the speed and 3 times the range over standard 802.11g routers.

WRT51AB

WRT series with 802.11a support. (First Generation)
Version CPU speed RAM Flash memory S/N Prefix Notes
1.0 125 MHz 32 MB 4 MB MCH0
Broadcom Chipset 2 mini-PCI Slots one A one B, Switch
BCM5325A2KQM, CPU BCM4702KPB

WRT55AG

WRT54G series with 802.11a support.
Version CPU speed RAM Flash memory S/N Prefix Notes
1.0 125 MHz 32 MB 4 MB ?? Broadcom BCM4710 Chipset 2 mini-PCI Slots
2.0 200 MHz 16?? MB 4?? MB ?? Broadcom chipset (vxworks bootloader?? Switch does not work with DD-WRT)

WTR54GS