Introduction
In the Spring of 2004, Linksys released their "Speedbooster" line. It increases it's wireless speed by using tweaked wireless drivers. It was a great router because it had twice the RAM and Flash of the WRT54G. However, that has since been cut.
Hardware Revisions
| Version | Serial | CPU Speed | RAM | Flash | Notes |
| 1.0 | CGN0 CGN1 |
200Mhz | 32MB | 8MB | WRT54GS released in Spring of 2004. Basically a juiced up WRT54G with new "Speedbooster" wireless drivers to increase speed. |
| 1.1 | CGN2 |
200Mhz | 32MB | 8MB | Chipset changed to Broadcom BCM5325EKQM from ADMtek 6996L |
| 2.0 | CGN3 |
200Mhz | 32MB | 8MB | 2 New LEDs behind the "Cisco" button. First GS to include "SecureEasySetup" feature. |
| 2.1 | CGN4 |
216Mhz | 32MB | 8MB | Radio chip is changed from BCM2050 to BCM2050KML |
| 3.0 | CGN5 |
200Mhz | 32MB | 8MB | Use System-on-Chip: processor, MAC, and switching are handled by Broadcom BCM5352EKBP |
| 4.0 | CGN6 |
200Mhz | 16MB | 4MB | In order to cut production costs, Cisco cuts RAM and Flash size in half. |
| 5.0 | CGN7 |
200Mhz | 16MB | 2MB | Operating system changed to VxWorks from Linux. Flash size cut in half again. |
| 5.1 | CGN8 |
200Mhz | 16MB | 2MB | - |
| 6.0 | CGN9 |
200Mhz | 16MB | 2MB | - |
Firmware
Download Firmware
Third-Party Firmware Compatibility:
Version 1-4: Yes
Version 5+: DD-WRT Micro Only
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