2020 49 Port Usb Hub Charging Or Transfer Data 2.0 Ports Hubs By The Psu Power For Bitcoin Mining Industrial Grade - Battery Accessories & Charger Accessories - AliExpress
USB 49-Port Hub
Block Erupter 49 Port USB 2.0 Hub 110/220V ATX – MyKiron
Eyeboot 49 Port USB 2.0 Hub 24P ATX PSU 110v/220v | #1791442120