Gefen DVI Detective NStore EDID information for displays Easier to use: External buttons control the programming of an EDID and the protection of the memory inside the unit. Keeps computer systems fromdeactivating inactive DVI ports. No power required after initial programming step. Custom Resolutions are available for specific devices. Buttonson the outside for EDID programming and write-protection. Use with Gefen DVI extenders to obviate the necessity for DDC CAT-5 lines in computer systems. Supports resolutions up to 1920x1200, 2K, and3840x2400 (Dual Link).