Description
ViewSonic Macintosh Adapter Mac 15-Pin to SVGA 15-Pin Video Adapter 1600x1200
The ViewSonic Macintosh Adapter is a compact inline video adapter that connects an Apple Macintosh computer's DB-15 video output to a standard SVGA monitor with an HD-15 input. An 8-position DIP switch on the side of the unit lets you select the correct resolution and sync mode for your monitor, supporting both fixed-resolution and multiple-resolution configurations.
Specifications & What's Included
- Brand: ViewSonic
- Type: Mac 15-Pin (DB-15 male) to SVGA 15-Pin (HD-15 female) video adapter
- Switch: 8-position DIP switch (positions 1–8), labeled ON / ECE
- Housing: Metal (silver/gray), compact inline form factor
- Fixed Resolution Switch Settings:
- 12″–13″ screens: 640 × 480 — switch settings 1258
- 14″–15″ screens: 832 × 624 — switch settings 2458
- 16″–17″ screens: 1024 × 768 — switch settings 2358
- 18″–21″ screens: 1152 × 870 — switch settings 123458
- Multiple Resolution Switch Settings:
- 14″–15″: 832 × 624 — switch settings 125678
- 16″–17″: 1024 × 768 — switch settings 12578
- 18″–21″: 1152 × 870 — switch settings 12568
- 1280 × 1024 — switch settings 12568
- 1600 × 1200 — switch settings 12568
- Maximum resolution: 1600 × 1200
- Includes: Adapter only — no cables or documentation
Applications
Apple Macintosh computers from the late 1980s through the mid-1990s used a proprietary 15-pin DB-15 video connector — physically similar to a standard VGA/SVGA HD-15 plug but with a different pin layout and sync signaling. This made Macs incompatible with the growing market of standard SVGA PC monitors without an adapter. The ViewSonic Macintosh Adapter was designed to bridge that gap, allowing owners of Mac II, Quadra, Centris, LC, and early Power Mac systems to connect a standard SVGA multisync monitor in place of an Apple-branded display. The DIP switches communicate monitor identity and sync capability back to the Mac's video circuitry, enabling the system to select the correct resolution and refresh rate. These adapters remain useful today for anyone maintaining vintage Macintosh equipment or using period-correct CRT monitors with legacy Mac hardware.
This ViewSonic Macintosh Adapter (Mac 15-pin to SVGA video adapter) has been inspected and appears to be in good used condition. The metal housing shows minor surface wear typical of handled equipment, and both connectors look clean and undamaged. The red resolution label is intact and fully legible, and the 8-position DIP switch cover opens freely. It was pulled from a working environment where it was previously in use. Please view our photo set and contact us if you have any questions.
Warranty Information
Additional Information
Brand: |
ViewSonic |
Model: |
Macintosh Adapter |
MPN: |
Macintosh Adapter |
Type: |
Mac 15-Pin to SVGA 15-Pin Video Adapter |
SKU: |
33181 |
Connector A: |
Apple Mac DB-15 (15-pin male) |
Connector B: |
SVGA HD-15 (15-pin female) |
Switch Type: |
8-position DIP switch (positions 1–8) |
Max Resolution: |
1600 x 1200 |
Supported Resolutions: |
640x480, 832x624, 1024x768, 1152x870, 1280x1024, 1600x1200 |
Compatible With: |
Apple Macintosh computers with DB-15 video output |
Compatible With 2: |
SVGA monitors with HD-15 input |
Form Factor: |
Inline Adapter |
Country/Region of Manufacture: |
Taiwan |
Seller Notes: |
Adapter only — no cables or documentation included. |
Condition Notes: |
This ViewSonic Macintosh Adapter (Mac 15-pin to SVGA) has been inspected and is in good used condition. Housing shows minor wear; connectors are clean and undamaged. DIP switch cover opens freely. Pulled from a working environment. |
California Prop 65 Warning: |
WARNING: This product can expose you to chemicals including lead and lead compounds, and DEHP (a phthalate), which are known to the State of California to cause cancer and birth defects or other reproductive harm. Go to P65Warnings.ca.gov |
