4-port USB hub with AC adapter for stable power supply. - Brand: BUFFALO - Number of ports: 4 ports - Cable length: 1.0m - Connection type: Type-C, microB, Type-A - USB standard: USB 2.0 - Included items: AC adapter - Supported OS: Windows, Android, macOS - Features: Stable power supply A few years ago, I couldn't clearly explain the product I wanted to a salesperson at a large electronics store, and they recommended this one. However, I ended up buying something different, and it's been sitting in a drawer ever since. I hope someone can use it. I'm looking forward to your comments.