This is a basically brand new Boss MD-500 modulation pedal with a Roland/Boss PSA-120S AC power adapter.
If you're looking for pristine digital delays this is the pedal for you.
"28 different algorithms with intensive programming parameters, offering a nearly limitless sound palette to create with. And with class-defying 32-bit AD/DA, 32-bit floating point processing, and 96 kHz sampling rate throughout, you’ll enjoy pristine sound quality that extends beyond the capabilities of the very best studio hardware."