Features: 1.100G High Speed: DAC high speed cable is fully compatible, plug and play, 100G high speed optical cable, dedicated to stacking and cascading between big data devices. 2.1 Meter Transmission Distance: QSFP28 to 4 SFP28 interface, 1M transmission distance, strong compatibility, compatible with most brands. 3.Heat Dissipation: The high speed cable is made of copper core, which has good heat dissipation effect and multi layer shielding protection to reject signal interference. 4.High Performance Chips: DAC cable adopts imported core optical components, chips and motherboards, which have the characteristics of high performance, low power consumption, and fast and stable signals. 5.Stable Performance: The product will be tested on the machine before leaving the warehouse to ensure that the compatibility of the product is qualified, and the performance of the product will be strictly tested with excellent equipment to ensure the stable performance of the product. specification:Item Type: 100G QSFP28 DAC Cable Material: Zinc Alloy, PVC Interface: QSFP28 to 4 SFP28 Speed: 100G Length: Approx.1m / 1.1yd Transmission Distance: Approx.1m / 1.1yd PackageList: 1 x High Speed Optical Cable 5 x Interface Protective Cover 2 x Strap