Monoprice Obsidian Speed Plus Power Bank USB Charger, 10,050mAh, 2-Port Up to 18W PD (3A) Output for iPhone, Android, and Galaxy Devices, Power Delivery Input/Output, Rapid Charging USB-A/USB-C Output - Monoprice.com
Meloaudio 5ft Otg Cable For Electronic Music Instrument Type C To Usb 2.0 Audio Interface To Midi Controller Piano Keyboard - Electric Instrument Parts & Accessories - AliExpress
DOREMiDi NEW HUB-8 MIDI 6x6 USB MIDI Host x2 USB3.1 MIDI Hub Box | eBay
Kenton Midi USB Host – Thomann United States
Kenton Midi USB Host – Thomann United States
USB battery powered hub? - YouTube
FA-STAR USB Camera Adapter, USB Male to Female OTG Data Sync Cable wit – FastarLabs
The best MIDI USB host is wireless, compact and super smart…
Ripcord USB to 12V DC power cable compatible with the Ketron SD2 MIDI module
Inspektor Gadjet Arduino USB MIDI Host - Usb Midi to Serial converter.