UHF RFID reader, with manufacturer price, with 4 ports for warehouse management with WIFI / GPRS Buyer and Importer

Hello, we want to order 2 of them, is still the same old HW?Frequency Band:UHF (840-920MHz) band, customize local RF bandProtocol: ISO18000-6C (EPC Gen2) / ISO18000-6BReading Range:0-20mCommunication Port:RS232, Ethernet, GPIO, USBOperation System:LinuxAntenna:External linear / circular polarization antennaSoftware Platform:C ++, C.Net,VB, JavaPower Adaptor:DC 12V input, POE optionalIP Rate:IP54 Long range UHF RFID reader use GPRS moduleCarton Package:33*24*14CMn2) / ISO18000-6BReading Range:0-20mCommunication Port:RS232, Ethernet, GPIO, USBOperation System:LinuxAntenna:External linear / circular polarization antennaSoftware Platform:C ++, C.Net,VB, JavaPower Adaptor:DC 12V input, POE optionalIP Rate:IP54 Long range UHF RFID reader use GPRS moduleCarton Package:33*24*14CM Show More