Enfain Custom USB Drives with Your LOGO (1GB, Black, 100 Pack) Pack of 100 USB Flash Drives, custom brand printing acceptable. 360 Degree Spinning Design with compact size 2.13"*0.76"*0.4" (fold) Good for corporate giveaway or tradeshow event. Compatible with USB 2.0, backwards USB 1.1. No need to install any software. Plug in and use. <span class="a-text-bold">MODEL:</span> Swivel <span class="a-text-bold">CASING MATERIALS:</span> Aluminum and plastic <span class="a-text-bold">SIZE:</span> 2.24&#034; x 0.75&#034; x 0.43&#034; (folded) <span class="a-text-bold">CHIP:</span>Grade A, original brand flash memory chip <span class="a-text-bold">INTERFACE:</span> USB 2.0, backwards compatible to USB 1.1 <span class="a-text-bold">OPERATING SYSTEM:</span> Win 10/ 8/ 7/ Vista/ XP/ 2000/ 98/ ME/ NT Linux and Mac OS. <span class="a-text-bold">SPEED:</span>Write Speed:4MB/S-6MB/S; Read Speed:12MB/S-15MB/S <span class="a-text-bold">OPERATING TEMPERATURES:</span> 32 F to 140 F (0 C to 60 C) <span class="a-text-bold">STORAGE TEMPERATURES:</span> -4 F to 185 F (-20 C to 85 C) <span class="a-text-bold">DURABILITY:</span> 50,000 times read &amp; write Please <span class="a-text-bold">convert the artworks to curves</span> before sending to us. Preferred artwork format: <span class="a-text-bold">Vector PDF ( Size&lt;=10MB).</span>