user: Question: Name the power provided for transfer speed mb/s is 1250
Columns: ['Name', 'Raw bandwidth (Mbit/s)', 'Transfer speed (MB/s)', 'Max. cable length (m)', 'Power provided', 'Devices per channel']
Types: ['text', 'real', 'text', 'text', 'text', 'text']
Sample row: ['eSATA', 3000.0, '300', '2 with eSATA HBA (1 with passive adapter)', 'No', '1 (15 with port multiplier )']
SQL:

assistant: SELECT "Power provided" FROM "Table" WHERE "Transfer speed (MB/s)" = '1250';