For sale is an Adaptec USBXchange USB to SCSI (50-pin) Converter Cable, designed for use with vintage SCSI devices such as scanners, drives, and other legacy peripherals, when used with era-appropriate hardware, operating systems, and drivers.
Included is the Adaptec USBXchange adapter and a DB25 to 50-pin IDC SCSI adapter cable as shown in the photos. The additional adapter cable may be useful for connecting to devices or bare drives that use an internal-style 50-pin SCSI connector, but please confirm your exact setup before purchase.This is vintage interface hardware. It was originally produced for use with operating systems such as Windows 98 / ME / 2000 / XP and contemporaneous hardware. Compatibility with modern operating systems (including current versions of Windows, macOS, or Linux) is not guaranteed, and modern driver support is limited or unofficial.
Please note:

• This item might not be plug-and-play on modern systems.
  
• Successful use requires appropriate drivers, correct SCSI termination, compatible devices, and technical knowledge of legacy SCSI setups.
  
• Use with modern systems may require workarounds, third-party software, or may not function at all depending on configuration.
  
• Buyer is responsible for verifying compatibility with their intended system before purchase.

If you have specific compatibility questions before purchasing, feel free to ask — I’m happy to help where possible.Fast and careful shipping from Tokyo, Japan.Please be aware of any customs import duties or taxes in your country.
🇺🇸 US buyers: shipments are sent DDP (Delivered Duty Paid), which means there are no duty fees on delivery, as duties are included in the shipping rate.
Please also note that customs delays may occur, particularly within the EU.
This is vintage hardware/software for vintage computers. Use of this item requires era-appropriate knowledge and compatible hardware/software. Please carefully verify your intended use and compatibility before purchasing. I am happy to answer reasonable questions, but compatibility with every system or configuration cannot be guaranteed, and step-by-step installation support is not provided. Issues arising from incorrect installation, modification, or incompatible use are outside the seller’s responsibility.
I usually ship within 24 hours. If shipping falls on a Saturday in Japan, dispatch may occur the following Monday.