Cisco 25-AP WLAN Controller NM for 2800/3800 Series. Management protocols: SNMP 1, RMON, Telnet, SNMP 3, SNMP 2c, HTTP, HTTPS. Dimensions (WxDxH): 390 x 180 x 183 mm, Weight: 0.39 kg. Operating temperature range (T-T): 0 - 40 °C, Operating relative humidity range: 10 - 95 %. Certification: CE, VCCI, EN 60950, EN55022, ICES-003, EN55024, UL 60950, FCC-15