GwliUni 4Pcs MPO Single Mode Female Loopback Plug Supports 12 Fiber Core 6 Channels Type A for 40G 100G Networks and QSFP Testing

【Main Parameters】Single mode MPO female loopback tester for APC end face; supports 12 fiber core 6 channel tramsimission 【Good Fiber Protection】The loopback tester adopts with fiber cable protection shell, which prevent the fiber from bending or breaking off 【Stable Signal Transmission】The loopback plug adopts high level fiber cable and connection core, which is low insertion loss (≤0.75db) and low return loss ( ≥60db), supports -40~75℃ operating temperature 【Standard Size】 The product meets the dual fiber adapter size standard for easy and accurate plug and pull，interst loss changing< 0.2dB (After 50 times plug testing) 【Widely Application】 it can detect potential abnormalities by testing the signal return of QSFP+, optical system debugging, optical fiber communication system, CATV system, etc.