The ViewSonic Viewbox VB50HRTV High-Resolution TV Tuner is a set-top box/appliance designed to provide high-resolution video capture in digital format. This model, Vsacc23126-1m, is manufactured in China by ViewSonic.
Class: DDR4. Designed For Viewsonic 5 A515-43G. Capacity: 4GB. Kit Capacity: 4GB. Your computer loads a program or file you select from the hard drive in to your computers RAM, then it will access each bit of data from there.