The VFLEX dongle functions as a universal adapter that bypasses the need for wall outlets. Users simply program the device via a smartphone app, connect it to a standard USB-C battery, and snap on a $4 barrel jack tip matching their device. Because contemporary portable batteries provide higher output than the original power bricks of the 1990s, they can easily sustain multiple legacy gadgets simultaneously.
Universal power for legacy tech: The $8 USB-C dongle
A tiny programmable dongle from the company Werewolf is breathing new life into aging electronics by enabling USB-C power delivery where proprietary barrel jacks once reigned. This hardware bridge allows vintage consoles, decades-old monitors, and legacy peripherals to run entirely on modern portable power banks without requiring invasive internal modifications.
Testing the setup with a 27-inch Asus monitor, a Super Famicom, and an RCA-to-HDMI adapter reveals impressive efficiency. Powered by a Shargeek 300 battery, the combined draw of these devices remains low enough to provide hours of operation. Even a 1989 Game Boy, which consumes a negligible 0.33W, integrates seamlessly into this modern power ecosystem. By eliminating the search for obsolete AC adapters, this solution offers a practical way to keep retro hardware functional in a cordless, mobile environment.
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