Hi: I have 2 Thinkpad L-412 I-5, 256SSD, 8 GIG. FOR 2 TEENAGE COUSINS. I BELIEVE I HAVE AN EXPRESSCARD SLOT AND I SEE USB 3.0 5GIG CARDS THAT I UNDERSTAND WILL LET THEM USE USB 3.0 FOR PRICES BETWEEN $5 AND $30. ANY THOUGHTS? $5.00 SURE SEEMS LIKE A GOOD UPGRADE PRICE.THANKS!