If you get an IEC brick power supply with a separate lead, it will work with a UK supply using an ordinary kettle lead to replace the US lead.

If you get the US all-in-one supply that has the plug built-in, it's 120V only and you'll need to spend a tenner or so on a UK supply.

Does that make things clear?
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Toby Speight
030103016 (80GB Mk2a, blue)
030102806 (0GB Mk2a, blue)