Avoid. I stupidly ordered a Mac Air charger from them. No acknowledgement of payment until poked via Paypal. Then arrive q fast - cannot be from China so have UK operator this end. No contact info anywhere. Adapter rubbish and did not function correctly. Tried to work out how to send back - impossible - responded via Paypal dispute by asking for photos, clearly a time-delaying manoeuvre. Asked for refund. Email address suspiciously similar to a genuine site laptopartstore.com, but with 2 's's in middle. No response. Eventually got Paypal to refund though initially when trying to adjudicate online was decided against me! Lessons: 1) avoid at all costs 2) phone Paypal - who were ultimately very helpful. Note: trade as Power Source Technology, laptopartsstore and laptopadaptersonline.co.uk