Planex MZK-W300NH

Product page Manual

This device appears to be another OEM Cameo AP81 product, looks very similar to the TRENDnet TEW-632BRP

On the OpenWrt wiki On the OpenWrt forums

The default SSID is probably planexuser.

Specs
Platform Serial Num. = ? FCC ID = SJ9-MZKW300NH Industry Canada ID = ? CPU Type = Atheros AR9130 MIPS Rev = ? CPU Speed = ? Bus = ? Flash Type = ? Flash Chip = STMicroelectronics 25P64V6P Flash Size = 8 MB Max Firmware Size = ? RAM Size = 32 MB RAM Chip = Hynix HY5DU561622FTP-D43 nvram Size = ? ETH chip1 = Atheros AR9130 Switch = Atheros AR8216 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 = 5 VDC, 2.5 A Connector type/size = Barrel plug LEDs/Color = ? Size = ? USB = ? Serial Port = ? JTAG Port = ? Supported by TJTAG/Version = ? Special Features = ? Radio Wireless Radio = Atheros AR9102 WLAN DSP processor = Atheros AR9130 Wireless interface OUI = none specified Antenna Connector Type = U.FL 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 = 2.4 GHz Radio cor_rev = ? Radio Capabilities = ? Other Default IP address = 192.168.1.1 Default login user = admin Default login password = password Default SSID = planexuser