1-port RS-232/422/485 wireless device server with 802.11a/b/g/n WLAN US band, US plug, 12 to 48 VDC, , Moxa, Mfr#: NPort W2150A-W4-US$462.99+
XDT4851002-01-S XDirect - Device server - 10MB LAN, 100MB LAN, RS-232, RS-422, RS-485 - AC 100 230 V, Lantronix, Mfr#: YYT1-10921436$165.99+