overviewrouterboard 2011uas, in comparison with rb2011l series, not only has five gigabit lan ports and five fast ethernet lan ports but also has rj45 serial port, microusb port and more ram (128mb instead of 64mb). also, it has routeros l5 license (instead of l4) and nice touchscreen lcd for configuration. sfp cage is also present (sfp module not included!)routerboard 2011uas-rm comes with 1u rack enclosure, lcd panel and power supply.specificationsproduct code?? rb2011uas-rmcpu speed?? 600mhzframe?? 128mb10/100 mbit lan ports?? 5gigabit lan ports?? 5minipci?? 0integrated wireless?? nousb?? microusbpower jack?? 8-28v dc802.3af support?? nopoe?? 8-28v dc on ether1voltage monitor?? yescpu temperature monitor?? nopcb temperature monitor?? yesdimensions?? 214mm x 86mm for pcboperating system?? routerostemperature range?? -35c to + 65crouteros license?? l5current monitor?? nocpu?? atheros ar9344sfp ports?? 1