$8 USB-C Dongle Powers Legacy Barrel-Jack Devices Without Modification

Werewolf's VFLEX, an $8 programmable USB-C-to-DC barrel-jack adapter, lets legacy electronics accept USB-C Power Delivery without internal modification. Interchangeable tips cost $4 each. Users set voltage via a phone app; the setting persists in non-volatile memory. The Verge tested it on an Asus monitor, a Super Famicom, and an RCA-to-HDMI adapter, all from one portable battery.