Description
Apple 699-0394 Delta SMP-291AB Power Supply for Quadra 950 303.25W
The Apple 699-0394 is the original OEM power supply for the Macintosh Quadra 950 tower, manufactured by Delta Electronics under model number SMP-291AB. It delivers 303.25W of total output power across multiple DC rails to power the Quadra 950's logic board, expansion cards, and internal drives. The unit features auto-ranging AC input, making it compatible with both North American (100–125V) and international (200–240V) mains voltages.
Specifications & What's Included
- Apple Part Number: 699-0394
- Manufacturer Model: Delta Electronics SMP-291AB
- Total Output Power: 303.25W
- Input Voltage: 100–125V AC or 200–240V AC (auto-ranging)
- Input Current: 10A @ 100–125V; 5A @ 200–240V
- Input Frequency: 50–60Hz
- Output +5V (standby): 1.25A continuous
- Output +5V (main): 33A
- Output -12V: 1.0A
- Output +12V(a): 5.4A
- Output +12V(b): 5A
- Receptacle: 100–125V @ 3.0A; 200–240V @ 1.5A; 50–60Hz
- Fuse: F8AH 250V
- IEC AC inlet (O/P Socket) on rear: 230/115V AC, 1.6/8A
- Four proprietary Apple Quadra output connectors (labeled A–D) on rear panel
- Multi-pin main harness connector for logic board
- Cooling fan integrated in chassis
- Manufactured in Taiwan
- Certifications: UL, CSA, TÜV (E131881, LR57908C)
- Includes: power supply unit with attached wire harness — no mounting hardware or additional accessories
Applications
The Macintosh Quadra 950 was Apple's top-of-the-line workstation tower from the early 1990s, built around the Motorola 68040 processor. It was widely used in desktop publishing, graphic design, scientific computing, and professional video production environments of that era. The Quadra 950's power supply is a proprietary unit — standard ATX supplies are not compatible — making this Delta SMP-291AB a sought-after direct replacement for collectors, legacy system maintainers, and anyone restoring a Quadra 950 to working order. This supply is also reported to be compatible with the Quadra 900, which uses the same chassis and power connector layout.
This Apple 699-0394 Delta SMP-291AB power supply for the Macintosh Quadra 950 has been bench-tested at our facility and is in good working condition. The unit is physically intact with normal cosmetic wear consistent with prior use — light scuffing on the metal chassis and some dust accumulation in the ventilation grille. The multi-pin wire harness and output connectors are present and undamaged. Please view our photo set and contact us if you have any questions.
Warranty Information
Additional Information
Brand: |
Apple |
Model: |
SMP-291AB |
MPN: |
699-0394 |
Secondary Model: |
Delta SMP-291AB |
SKU: |
16915 |
Type: |
Desktop Computer Power Supply |
Manufacturer: |
Delta Electronics, Inc. |
Compatible With: |
Apple Macintosh Quadra 950 |
Apple Part Number: |
699-0394 |
Total Output Power: |
303.25W |
Input Voltage: |
100–125V / 200–240V AC (Auto-Ranging) |
Input Current: |
100-125V: 10A; 200-240V: 5A |
Input Frequency: |
50–60Hz |
Output +5V: |
+5V @ 1.25A Continuous |
Output +5V Main: |
+5V @ 33A |
Output -12V: |
-12V @ 1.0A |
Output +12V (a): |
+12V(a) @ 5.4A |
Output +12V (b): |
+12V(b) @ 5A |
Receptacle Input: |
100-125V: 3.0A; 200-240V: 1.5A; 50-60Hz |
Fuse: |
F8AH 250V |
Connector Type: |
Proprietary Apple Quadra multi-pin harness |
Country/Region of Manufacture: |
Taiwan |
Seller Notes: |
Power supply only — no mounting hardware or additional accessories included. |
Condition Notes: |
This Apple 699-0394 Delta SMP-291AB Quadra 950 power supply has been bench-tested at our facility and is in good working condition. Shows normal cosmetic wear. Wire harness and connectors present and undamaged. |
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 |