Running a fanless Intel Atom dual-core processor at 1.86 GHz, the Elo E420297 all-in-one POS terminal keeps operation quiet and uninterrupted at the counter. The 21.5-inch LED touchscreen uses iTouch Plus surface acoustic wave touch technology and resolves at 1920x1080 pixels, while 2 GB of DDR3 SDRAM and a 320 GB SATA hard drive support Windows 7 Professional with SP1 out of the box. Connectivity spans USB, serial, Gigabit Ethernet via RJ-45, and a dedicated cash drawer port. The dark gray chassis measures 21.2 in wide, 14.3 in tall, and 12.7 in deep at 16.10 lb, carrying an IPX1 spill-resistant enclosure rating. ENERGY STAR 5.2 certification and RoHS compliance round out the profile, backed by a 3-year limited warranty.