Older units like the 211, 211k, 411, 612, 622, 722, 722k, 922, Hopper, and Hopper w/ Sling requires an External Hard Drive(EHD) with it's own power supply, USB 2.0 support, a single hard disk drive(flash memory is not compatible), and with a storage size between 50GB to 2TB.
by Camping World – May 05, 2016
Record up to 100 hours of HD programming.
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