EnGenius ESR-9752

There is also a ESR-9752-SC model (which is apparently resold by Sitecom as the WL-342).

On the DD-WRT supported devices table

Specs
Platform Serial Num. = ? FCC ID = U2M-SR97908003 Industry Canada ID = ? CPU Type = Ralink RT3052 MIPS Rev = ? CPU Speed = 384 MHz Bus = ? Flash Type = ? Flash Chip = ? Flash Size = 4 MB Max Firmware Size = ? RAM Size = 16 MB RAM Chip = ? nvram Size = ? ETH chip1 = Ralink RT3052 Switch = Ralink RT3052 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 = ? SD/MMC Mod Support = ? Expansion IF types = ? PoE = ? Power = 12VDC/1A Connector type/size = Barrel plug LEDs/Color = ? Size = ? USB = ? Serial Port = Yes JTAG Port = ? Supported by TJTAG/Version = ? Supported by dd-wrt as of = ESR9752 v.24 sp2 - build 12527 dd-wrt K2.4 Support = ? dd-wrt K2.6 Support = ? Special Features = ? Radio Wireless Radio = Ralink RT3052 WLAN DSP processor = Ralink RT3052 Wireless interface OUI = none specified Antenna Connector Type = 2 dbi with RP-SMA (detachable) MIMO status = 2x2:2 Wireless Standard = IEEE 802.11b/g/n 802.11n = up to 300 Mbps 802.11g = 6, 9, 12, 18, 24, 36, 48, 54 Mbps 802.11b = 1, 2, 5.5, 11 Mbps WiFi Operating Frequency = 2.400–2.484 GHz Channel Bandwidth (Auto, 20MHz, 40MHz) Radio cor_rev = ? Radio Capabilities = ? Other Default IP address = 192.168.0.1 Default login user = admin Default login password = admin Default SSID = ? OEM = ? 3rd Party Firmware Support = ?

Links of Interest

 * ESR-9752

Pictures
FCCID U2M-SR97908003