I bought them from Amazon 2 years back, but have not used them. It has company sealed on, which means i have never opened the box. I have two of them. This is the bargain price. The description is below. Min Operating Temperature-5 °CMax Operating Temperature45 °CHumidity Range Operating5 – 95%. Input VoltageAC 400 VInput Wiring3-phaseFrequency Required50/60 HzInput ConnectorsPower IEC 60309 16A, power IEC 60309 20APower Output Connectors Details21 x power IEC 60320 C13 ¦ 3 x power IEC 60320 C19Output VoltageAC 230 VMax Electric Current16 APower Capacity11 kW. Cables IncludedPower cable – 1.83 m ¦ Serial cable – externalRack Mounting KitIncludedFeaturesLED display, voltage monitoring, firmware upgradableCompliant StandardsUL, EN 61000-3-2, ICES-003, VDE, EN 61000-3-3, EN55024, EN55022 Class A, RoHS, FCC Part 15 A, GOST-R, REACH. Remote Management InterfaceEthernet 10/100Remote Management ProtocolSNMP, Telnet, HTTP, HTTPS, SSH, CLI. Device TypePower distribution unit – rack-mountableHeight (Rack Units)0UColourBlack. Interfaces1 x LAN – RJ-45 ¦ 1 x management – RJ-12 ¦ 1 x USB – 4 pin USB Type A. Width5.6 cmDepth5.1 cmHeight182.9 cmWeight8.23 kg. Designed ForP/N: AR3100, AR3150, SMX3000RMHV2UNC. The item “APC AP8681 Metered-by-Outlet with Switching Rack PDU ZeroU 2G PDU” is in sale since Sunday, October 08, 2017. This item is in the category “Computers/Tablets & Networking\Power Protection, Distribution\Power Distribution Units”. The seller is “0121*kambo” and is located in Halesowen. This item can be shipped to United Kingdom, Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Australia, United States, Canada, Brazil, Japan, China, Israel, Hong Kong, Norway, Indonesia, Malaysia, Mexico, Singapore, South Korea, Switzerland, Taiwan, Thailand.

• Brand: APC