Description
BAFO 8720-25S 2-Way Data Transfer Switch 25-Pin DB25 Serial AB Switch Box
The BAFO 8720-25S is a manual 2-way AB data transfer switch that allows a single host device to share two peripheral devices — or two computers to share one peripheral — without physically swapping cables. Switching between positions A and B is done via the front-panel rotary knob. The unit uses standard 25-pin DB25 female connectors, making it compatible with RS-232 serial and Centronics-compatible parallel devices.
Specifications & What's Included
- Brand: BAFO
- Model: 8720-25S
- Type: Manual 2-Way AB Data Transfer Switch
- Switch positions: A and B (2-way)
- Connector type: DB25 (25-pin) female
- Number of ports: 3 — one shared Input-Output port, two peripheral ports (A and B)
- Switch mechanism: manual rotary knob
- Interface compatibility: RS-232 serial, standard parallel
- Form factor: desktop metal enclosure
- No external power required — passive mechanical switch
- Unit only; no cables included
Applications
Manual AB data transfer switches like the BAFO 8720-25S were a practical staple of office and small-business computing environments from the late 1980s through the 1990s and into the early 2000s, when DB25 serial and parallel ports were standard on PCs, printers, plotters, modems, and other peripherals. A typical setup connects one computer to two printers — or two computers to one printer — letting the user switch between them without unplugging cables. Because the switch is entirely passive with no electronics, it works reliably with any device using a standard DB25 interface: dot-matrix and laser printers, external modems, serial terminals, plotters, label printers, and legacy data acquisition equipment. These switches remain useful today wherever legacy DB25 serial or parallel equipment is still in service, including industrial control systems, CNC machinery interfaces, and vintage computing setups.
This BAFO 8720-25S 2-Way DB25 Data Transfer Switch has been inspected and is in good used condition. It was pulled from a working environment where it was in active use. The metal enclosure shows light surface wear consistent with normal use; the rotary selector knob and port connectors appear intact and undamaged. Please view our photo set and contact us if you have any questions.
Warranty Information
Additional Information
Brand: |
BAFO |
Model: |
8720-25S |
MPN: |
8720-25S |
Type: |
Manual AB Data Transfer Switch |
SKU: |
39515 |
Number of Ports: |
3 (1 Input-Output, 2 Peripheral — A and B) |
Connector Type: |
DB25 Female (25-Pin) |
Interface: |
RS-232 / DB25 Serial / Parallel |
Switch Configuration: |
2-Way AB (1 host to 2 devices) |
Switch Type: |
Manual Rotary |
Number of Positions: |
2 (A and B) |
Form Factor: |
Desktop Box |
Condition: |
Used – Pulled from Working Environment |
Seller Notes: |
Unit only; no cables included. |
Country/Region of Manufacture: |
Taiwan |
Condition Notes: |
BAFO 8720-25S 2-Way DB25 Data Transfer Switch. Inspected, good used condition. Pulled from a working environment where it was in active use. Light surface wear; rotary knob and connectors intact. See photos. |
