Fast charging compatible with: Samsung Galaxy S21/S21+/S21 Ultra/Note 20/S20 Ultra/Galaxy Z Flip 3/S10/S10+/S20/S20+/S9/S9+/S8/S8+/S7/S7 Plus/S7 Active/S6/S6 Plus/Edge/Active, Note 8/9/10/20, LG G5 G6 G7 V20 V30 V40 ThinQ Plus and more fast charge supported devices. ( Samsung fast charger )^ Adaptive fast charge: Supports fast charging for Samsung Phones, QC 3.0/2.0 and Adaptive Fast Charging (AFC) compatible devices. Enables you to charge your phones up to 50% battery level in 30 minutes, 75% faster than standard Samsung fast charger. Save a lot of time with Adaptive Fast Charging Wall Charger.^ Perfect design: 4-Pack USB Wall Charger Block, perfect as replacement or backup fast charger block for using at home, travel, office, or business trip. Lightweight, compact design that fits your storage requirements.^ Safety: Protects your device against over-heating, over-charging and over-current or damaging your devices, providing a safe charge Input 100V-240V (U.S. and World Standard); Output:9V = 1. 67a or 5. 0V = 2. 0a (U.S. and World Standard)^ What you get: 4 pack charging adapter (charger cable is not included). If there are any quality problem, please contact us