... quality and services, oem & odm welcome UL&SGS rj11 female to female coupler RJ45 jack contact,phosphor bronze,nickel-plate with ... . Retention strength:7.7kg between jack and plug4. Operation temperature:- 40 to 80 degree celsuis5. Durability:jack 750 cycles plug-jack mating and unmating ... ,100% non-toxic,harmless,eco-friendly4.If want to import some products to test the market,we can lower the MOQ5.MOQ ...