DETAILS: Multi-Tech Systems is a global manufacturer of award winning remote access, Internet and telephony products that allow people to communicate more efficiently and effectively. Multi-Tech invents, designs and builds complete end-to-end communication solutions for small to mid-size businesses and ISPs. Along with high-tech products the company develops accessories that apply best engineering solutions and are of the award-winning quality.The ZDXModemRack is a rackmount chassis for external modems, frame relay devices, and DSUs with the Multi-Tech ZDX-style chassis. The rack has mountable storage cage for twelve Multi-Tech compact communication devices along with integrated redundant power supply with universal input. Product Description Multi-Tech ZDXModemRack ZDXRACK - modular expansion base Device Type: Modular expansion base Dimensions (WxDxH): 7.8 in x 19 in x 5.2 in Weight: 8.2 lbs Manufacturer Warranty: 2 years warranty ALTERNATE ITEM #: ZDXRACK UPC: 0789407005060