Product Description Specifications Building block design with stacking cap design, mini lanyard, Grade A memory, 10 Year warranty on data retention, 1 year replacement warranty on faulty manufacture. There are 3 styles 1) all smooth on the back non stackable 2) 1 sprocket on 1 half on the back 3) 2 sprockets on each half of the back. The sprockets enable the flash drives to be stacked. Product Size: 32 x 15 x 9 mm Branding Area: 14 x 6.5 mm (sides), 14 x 14 mm (bottom) Standard Packaging: Poly Bag Certification: CE, FCC, USB2.0, RoHS Data Upload: Free Data upload to 150MB on all indent orders. Notification: USB 2.0 has an average read-write speed of 480 MBPS (megabytes per second), while USB 3.0 transfer speed is 4800 MBPS, 10 times faster. If you have high capacity data files, videos & very high-resolution images, you may need a faster flash drive. If
