Serial conversion adapter (Model: USB-RSAQ6) from I/O DATA. Items for sale: * Main unit * USB connection cable, approximately 2m I have downloaded the driver and confirmed that it works correctly on my PC (Windows 10). There are no noticeable scratches or stains, but there are some minor scuff marks. Instruction manual and outer box are not included. I will carefully clean and package the item with消毒用アルコール (disinfecting alcohol). Shipping will be via Nekopos (Yamato Transport). It will be delivered to your mailbox, but I will wrap the main unit in bubble wrap and then put it in an envelope, and protect it with a plastic bag as a rain対策 (rain protection). Please also see my profile.