40Gbps Hyper-Fast Transfer - Thunderbolt 4/3 ports, transferring 2G file in seconds;supports 4K@60Hz ultra clarity for screen casting Magnetic Design - With magnet sticker for more secure connection without hurting the original port or blocking the charging port 8.3MM Ultra-Thin Body - Mini and compact design, blends right in with your laptop and is easy to carry and store Card Readers Fast Read - Up to 104MB/s speed, transferring large media data in just seconds PD 100W Fast Charging - Fast charging your laptop while expanding Excellent Temperature Control - BCT (Baseus Cooling Tech) helps the heat dissipation for a more stable full-load operation without overheating Specification: Input: Type-C Output: USB-C: 40Gbps USB 3.0: 5Gbps For SD/TF: 104MB/s Input: 5V 3A; 9V 3A; 15V 3A; 20V 5A Output: 5V 0.9A Compatible systems: Windows, for Apple OS, for Linux, Vista system