This product is a genuine Sinclair ZX Spectrum UK power supply, specifically designed for the ZX Spectrum 16/48K model. It is a vintage item that has been tested and confirmed to be in working order. The power pack has had its capacitors and plug replaced to ensure optimal performance. Made in the United Kingdom, this adaptor is a crucial component for powering and maintaining the functionality of your vintage Sinclair ZX Spectrum computer. This tested and working power supply is a reliable choice for those looking to keep their retro computing system in top condition.