The Kingston HyperX Predator USB3.0 thumbdrive Specifications: -Capacity: 512GB -Read speeds up to 240 MB/s and Write speeds up to 160 MB/s -Supports Windows 10Pro, 10, 8.1, 8, 7, Vista, XP, and Mac systems. Highly compatible integration. -Metal casing with custom keyring, HyperX valet keychain, and USB extension cable (3.0)/(2.0 return compatibility) -Size (LxWxH): 2.8346” x 1.0606” x 0.8268” (72mm x 26.94mm x 21mm) -Operating Temperature: 32°F to 140°F (0°C to 60°C) -Storage Temperature: -4°F to 185°F (-20°C to 85°C) -This drive has reverse capable USB2.0 compatibilty as well. The Kingston drive is presented and stores safely in a solid metal case.  Inside the case is the USB thumb drive, a nifty but slick looking keychain (which can be attached to the drive and a set of keys), and a USB extension cable (3.0). The sturdy metal USB thumb drive is silver with the the Kingston and HyperX Predator 512GB logos prominently displayed on the front. This case has minimal ware. The drive, extension cable and custom keychain are all in immaculate and perfect condition. Operation of the drive, same. They are as if just purchased yesterday. Inside the HyperX Predator is a Phison PS2261 controller with eight 64GB Toshiba MLC NAND pieces spread across three daughter boards. Kingston HyperX Predator utilizing its USB 3.0 interface. 2MB sequential read and write speeds measured 233.2MB/s and 160.5MB/s respectively, while random large-block transfers measured 149.3MB/s read and 37.62MB/s write. The Kingston HyperX Predator USB 3.0 512GB offers a great stroage solution for users really looking for increased thumb drive capacity and an extremely portable drive with performance capabilities. The case, keychain, and build of the drive itself are all top notch.  (last photo is NOT this drive, but a photo of a drive carefully opened by a review done about the HyperX Predator 512GB thumb drive. I entered the photo so the detail and visual data could be observed by any interested... Device is in mint condition.