BuyDig offers the Lexar 16GB JumpDrive S50 USB Flash Drive 4-Pack in Purple, model no. E3LXLJDS5016G316, for $16.99 with free shipping. That's a $1 drop from our mention from three days ago, $45 off, and the lowest total price we've seen for this quantity. These flash drives feature a swivel design and retractable connector.