10Gtek Transceivers Co., LTD is an ISO 14000:2004 & ISO 9001:2008 certified manufacturer specialized in R&D, production, sales and services of DAC Twinax Cable assembly and Optical Transceiver products. Relying on its sharp market insight, strong R&D capabilities and continuous efforts, now 10Gtek has become a Top-10 DAC twinax cables maker and one of the earliest suppliers for 40G QSFP+ products, including 10G, 40G & 56G QSFP+ copper and AOC cables and optical modules. All 10Gtek's products have passed Rohs, CE certificates. Plus, 10Gtek's DAC twinax Cables will cross reference with ANY competing brand copper Cable.