Linksys WRTSL54GS v1.0

Serial numbers may start with CJK0 and CJK1. There may be multiple revisions of this device.

DD-WRT Trac states the device uses BCM5325E, FCC photos show BCM5325F, OpenWrt wiki states BCM5325F

There is a NEC USB 2.0 controller on-board.

Specs
Platform Serial Num. = CJK0 or CJK1 FCC ID = Q87-WTSLGS Industry Canada ID = 3839A-WTSLGS CPU Type = Broadcom BCM4704 MIPS Rev = R1 CPU Speed = ? Bus = ? Flash Type = ? Flash Chip = Intel TE28F640 Flash Size = 8 MB Max Firmware Size = ? RAM Size = 32 MB RAM Chip = Hynix HY5DU561622DT-J nvram Size = 32 kb ETH chip1 = Broadcom BCM4704 Switch = Broadcom BCM5325F Port-based vlan = ? 802.1q vlan = ? Ethernet Port Count = 1-10/100-WAN 4-10/100-LAN Wired Standard = IEEE 802.3/3u Ethernet interface OUI = none specified boot_wait = ? bootloader = ? Flash Card Socket/Type = No SD/MMC Mod Support = No Expansion IF types = 1x USB 2.0 PoE = No Power = 12 VDC, 1 A Connector type/size = Barrel plug LEDs/Color = ? Size = ? USB = Yes Serial Port = ? JTAG Port = ? Supported by TJTAG/Version = ? Supported by dd-wrt as of = ? dd-wrt K2.4 Support = ? dd-wrt K2.6 Support = ? Supported by TomatoUSB as of = 54/All TomatoUSB K2.4 Support = Yes TomatoUSB K2.6 Support = Yes Special Features = ? Radio Wireless Radio = Broadcom BCM4318E WLAN DSP processor = Broadcom BCM4318E Wireless interface OUI = none specified Antenna Connector Type = none MIMO status = ? Wireless Standard = IEEE 802.11b/g 802.11g = 6, 9, 12, 18, 24, 36, 48, 54 Mbps 802.11b = 1, 2, 5.5, 11 Mbps WiFi Operating Frequency = 2.4 GHz Radio cor_rev = ? Radio Capabilities = ? Other Default IP address = 192.168.1.1 Default login user = blank Default login password = admin Default SSID = ? OEM = CyberTAN 3rd Party Firmware Support = DD-WRT, OpenWrt, TomatoUSB, Tomato

Pictures
FCCID Q87-WTSLGS