X33 4A Surge USB to Micro-USB 7pin charging data cable 1m current up to 4A1. Length – 1m, weight – 33g.2. Connector: USB to Micro-USB 7pin, support up to 4A.3. Support Micro-USB flash charging, suitable for VOOC flash charging of some OPPO mobile phones, matching OPPO original 5V / 4A charger.4. Material: PVC.5. Wire core specification: 150 four-core tinned copper OD4.5mm.