Check the listing for details. Flash Link USB Logger Delta TRAK. Color: Yellow, Condition: Used. Listed at 100.00 USD. I have never seen one of these before. I am not actually sure totally on its use and what it is designed for. This came directly from the estate of a Rolls-Royce engineer and helicopter pilot. He spent his entire life flying around the world, helicopters and engineering motors for Rolls-Royce corporation. I don’t know what this is, but I’m sure somebody does and I’m sure it’s worth quite a bit of money to the right person. I have plugged it into my computer but it doesn’t show up as a drive so I am not sure as to what exactly this is. It does have serial numbers, and it does power up and says PC on the screen when it is plugged into a computer. So it’s a mystery computer device and it might have something to do with engineering and the Royal company of Rolls-Royce. This Flash Link USB Logger by Delta TRAK is a must-have for anyone who wants to keep track of their USB flash drives. With its sleek yellow design and easy-to-use interface, you can easily log in and see a list of all your USB flash drives connected to your computer. Whether you're a professional or just someone who wants to keep track of their USB flash drives, this logger is perfect for you. Its compact size makes it easy to carry around, and its durable construction ensures that it will last for years to come. So why wait? Get your hands on this Flash Link USB Logger today and start enjoying the convenience of knowing exactly what USB flash drives you have connected to your computer at all times!