Behringer U-Control UCA222 USB Audio Interface (RCA to USB)

The Behringer U-Control UCA222 USB audio interface is £16.40 at Amazon.
It is a 2 input and 2 output USB audio interface for converting analogue RCA audio sources to digital, so you can connect a cassette deck, mixer, hi-fi or a record player with a built in preamp to a computer to record or digitise your music.
It is powered over USB, so there is no separate power supply, and it also has RCA outputs and a headphone output for monitoring. It is a cheap way to digitise old vinyl and tapes before they wear out, or to record audio from older kit onto a laptop.
It is rated 4.5 out of 5 from nearly 6,000 ratings on Amazon. It was in stock at the time of posting. Sold by Amazon. Free delivery for Prime members or on qualifying orders.