Microsoft’s new US promotion lets you trade in your old Surface by March 8th to get credit towards a Surface Pro 3. You need to have a fully working device to get as much as $650– the amount depends on the device you intend to trade in. If you’re aiming to hit the $650 mark, that means you should have a 256GB, Core i5-equipped Surface Pro 3 in possession to trade in. So, if you have an old Surface device packing up dust see the full list of potential trade in values for all working devices below. See the source link below for full instructions on how to trade in your Surface device.
Surface Pro
64GB – $122
128GB – $207
256GB – $215
Surface Pro 2
64GB – $189
128GB – $221
256GB – $299
512GB – $361
Surface Pro 3
Core i3/64GB – $499
Core i5/128GB – $514
Core i5/256GB – $650
Surface RT
32GB – $84
64GB – $94
Surface 2 (Wi-Fi and 4G)
32GB – $114
Surface 2
32GB – $105
64GB – $114