Come and Check Our Promo Solutions.The USB is made of the aluminium alloy, 16GB USB flash drive, special shape, easy to carry. It's a USB 2.0 device (compatible with 1.1) that features Nand Flash Logic, more than ten years of data retention and is RoHS compliant. Grab all of the attention your customer with your logo. Pls check inventory and detailed info with us before placing your orders.