For those who want to enjoy PC audio with high sound quality or play DSD sources in a full-fledged environment, how about this? Despite its compact size, its luxurious dual-mono design will upgrade your desktop listening environment. Manufacturer: TEAC Model Number: UD-501 Included Accessories: Power cable [Condition of the product] Operation has been confirmed. There are no noticeable scratches or stains overall, but there are some minor scuffs due to use. It is in relatively good condition for a used item, but please check the photos for details of the appearance. Simple cleaning has been done using alcohol. I try to convey the condition as much as possible with the photos and the above descriptions, but please feel free to comment if you have any questions! [About packing and shipping] As it is precision equipment, it will be carefully wrapped in bubble wrap (cushioning material) and packed to withstand impact. [Other product information (excerpted from the manufacturer and Amazon, etc.] ① Supports native playback of DSD 2.8/5.6MHz via ASIO2.1 and DoP methods ② High-resolution audio playback of up to 32bit/384kHz is also possible in PCM format ③ Thorough dual-mono configuration to eliminate interference between left and right channels ④ BurrBrown PCM1795 DAC and MUSES8920 op-amps are placed independently on the left and right ⑤ Equipped with two toroidal core power transformers to achieve stable power supply ⑥ A4 size full metal enclosure that is easy to install on a desktop ⑦ Equipped with 192kHz up-conversion function and various digital filters ⑧ Equipped with XLR balanced output terminals in addition to RCA output ※The above is based on information from the manufacturer and sales sites. Due to differences in versions, etc., the specifications of this product may not completely match.