AP-401N Auto Data Switch for 4 Computers to 1 Parallel Printer, DB25, 9V DC

This listing is for a used AP-401N Auto Data Switch, designed to allow up to four computers to share a single parallel printer. It features both automatic and manual switching via the "SELECT" button and DIP switch settings. This unit is ideal for retro computing setups or legacy industrial applications. Key Features: Model: AP-401N Ports: 4x DB25 Female (Computer 1–4) 1x DB25 Female (Printer) DC 9V barrel jack (power) DIP switch for configuration Front Panel Indicators: Printer Ready LED Channel indicators (1–4) Manual/Auto switch toggle Back Panel Switch: Power ON/OFF Power Requirement: 9V DC (power adapter not included) Condition: Used and in good condition with minor cosmetic wear consistent with age. All ports appear intact. Power cable is wired in as shown. No further testing has been performed. What's Included: AP-401N Auto Data Switch unit only (no cables, power supply, or documentation) Shipping & Handling: Ships carefully packed within 1 business day. Tracking provided. Note: This device is compatible with legacy parallel printer connections and may not be compatible with modern USB printers without adapters.