Dell OptiPlex SFF Desktop Power Supply Replacement Guide – 235W L235P-01 Compatibility
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Product link:https://nadalan-power.com/products/235w-dell-optiplex-sff-psu-l235p-01
Is Your Dell OptiPlex SFF Desktop Having Power Issues? Here‘s Your 235W Replacement Guide
If you own a Dell OptiPlex SFF (Small Form Factor) desktop from the 380, 580, 760, 780, 960, or 980 series and are experiencing power failures, random shutdowns, or simply need a spare power supply, you’ve come to the right place.
Dell OptiPlex SFF desktops use specialized power supplies that are different from standard ATX units. Finding the correct replacement can be challenging because these units use proprietary connectors and specific form factors.
This guide will help you quickly identify if the 235W L235P-01 Power Supply is the right match for your Dell OptiPlex.
Quick Compatibility Check
This 235W power supply is specifically designed for the following Dell OptiPlex SFF (Small Form Factor) models:
| Series | Compatible Models |
| Dell OptiPlex 300 Series | 380 SFF |
| Dell OptiPlex 500 Series | 580 SFF |
| Dell OptiPlex 700 Series | 760 SFF, 780 SFF |
| Dell OptiPlex 900 Series | 960 SFF, 980 SFF |
⚠️ Important: This power supply is ONLY compatible with Dell OptiPlex SFF (Small Form Factor) desktops. It will NOT work with Dell Mini Tower (MT), Desktop (DT), or USFF models.
Compatible Power Supply Models
This power supply replaces the following Dell power supply models:
| Model Number | Compatible? |
| L235P-00 | ✅ Yes |
| L235P-01 | ✅ Yes (main model) |
| H235P-00 | ✅ Yes |
| D235E-00 | ✅ Yes |
| F235E-00 | ✅ Yes |
| H235E-00 | ✅ Yes |
| D235ES-00 | ✅ Yes |
| AC235AS-00 | ✅ Yes |
Compatible Part Numbers:
| Part Number | Compatible? |
| R224M | ✅ Yes |
| PW116 | ✅ Yes |
| RM112 | ✅ Yes |
| FR610 | ✅ Yes |
| 67T67 | ✅ Yes |
| WU136 | ✅ Yes |
| F373D | ✅ Yes |
💡 Tip: Simply remove your old power supply and check the sticker on top. If you see any of the model numbers or part numbers listed above, this replacement will work perfectly.
Key Specifications at a Glance
| Specification | Detail |
| Power Output | 235W |
| Dimensions (L×W×H) | 210 × 82 × 62 mm |
| Form Factor | Dell OptiPlex SFF (Small Form Factor) |
| Input Voltage | 100-240V (Universal) – suitable for multiple countries‘ voltages |
This 235W output provides reliable power for Dell‘s SFF business desktops, ensuring stable performance for office tasks and daily productivity.
Connector Configuration – The Most Important Check
This power supply uses a special small 24-pin interface – different from standard ATX 24-pin connectors.
| Interface Type | Connector | Quantity |
| Motherboard Main Power | Small 24-pin (proprietary) | 1 |
| SATA Power | SATA | 1 |
| CPU Power | P4 (4-pin) | 1 |
| Special Interface | Small 6-pin | 1 |
⚠️ Special Note: This power supply features a special small 24-pin interface that is proprietary to Dell OptiPlex SFF models. It is not the same as a standard ATX 24-pin connector. Please verify compatibility carefully.
Why This Connector is Different:
The standard ATX 24-pin connector is approximately 40mm wide. The Dell small 24-pin connector used in these OptiPlex SFF models is significantly smaller and has a different pin arrangement. Do not attempt to force a standard ATX power supply into this motherboard.
Physical Size – Measure Before You Order
Even if the model number matches, it‘s always a good idea to check the size.
| Dimension | Measurement |
| Length | 210 mm |
| Width | 82 mm |
| Height | 62 mm |
This specific size is designed to fit perfectly inside Dell OptiPlex SFF (380, 580, 760, 780, 960, 980) chassis.
Why Choose This 235W Replacement Power Supply?
| Feature | Benefit |
| Dell OptiPlex SFF Specific | Designed for 380/580/760/780/960/980 SFF models |
| Direct Replacement | No adapter or modification needed – works right out of the box |
| Universal Input | 100-240V – works worldwide (plug adapter may be needed) |
| Wide Compatibility | Replaces 8+ different Dell model numbers |
| Proprietary Connectors | Small 24-pin + 6-pin + SATA + P4 – matches Dell SFF spec |
| Stable Performance | Reliable operation for business desktops |
| 1-Year Warranty | Protected by Nadalan‘s 1-year return/exchange policy |
| Fast Global Shipping | Air freight to most countries in approximately 10 days |
Compatibility Note:
⚠️ Special note: Special small 24-pin interface, suitable for dedicated models. Stable performance, suitable for 100-240V input voltage, suitable for multiple countries‘ voltages.
This power supply is specifically designed for Dell OptiPlex SFF dedicated models. Please verify:
- Model number matches the compatible list
- Connector types match your motherboard (small 24-pin + small 6-pin + P4 + SATA)
- Physical size fits your Dell OptiPlex SFF chassis
Installation Tips
- Power down and unplug your Dell OptiPlex SFF completely.
- Open the case – Dell OptiPlex SFF cases typically have a latch or thumbscrew on the back.
- Disconnect cables from the old power supply – note where each connector goes (small 24-pin, small 6-pin, P4, SATA).
- Take a photo of the connector layout before disconnecting – this is critical due to the proprietary small 24-pin connector.
- Remove the old PSU – usually held by 3-4 screws on the back of the case.
- Install the new PSU – secure with screws, then reconnect all cables following your photo.
- Test before closing – power on to ensure the system boots properly.
Frequently Asked Questions
Q1: What Dell OptiPlex models is this 235W power supply compatible with?
Compatible with Dell OptiPlex 380 SFF, 580 SFF, 760 SFF, 780 SFF, 960 SFF, and 980 SFF.
Q2: What are the compatible power supply model numbers?
L235P-00, L235P-01, H235P-00, D235E-00, F235E-00, H235E-00, D235ES-00, AC235AS-00.
Q3: What are the compatible part numbers?
R224M, PW116, RM112, FR610, 67T67, WU136, F373D.
Q4: What connectors does this power supply have?
It includes: 1x small 24-pin (proprietary), 1x SATA, 1x P4 (4-pin CPU), and 1x small 6-pin (proprietary).
Q5: What is the difference between “small 24-pin” and standard ATX 24-pin?
The Dell small 24-pin connector is proprietary and significantly smaller than the standard ATX 24-pin connector found on regular power supplies. They are not interchangeable.
Q6: What are the physical dimensions?
210mm × 82mm × 62mm.
Q7: Will this work with Dell OptiPlex Mini Tower (MT) models?
No. This is specifically designed for Dell OptiPlex SFF (Small Form Factor) models only.
Q8: Will this work with Dell OptiPlex 990 SFF?
This unit is specifically designed for 380/580/760/780/960/980 SFF. For OptiPlex 990 SFF, please check your original power supply model number.
Q9: Is this a genuine Dell power supply?
This is a high-quality compatible replacement that meets or exceeds OEM specifications – stable performance, suitable for dedicated models.
Q10: What input voltage does it support?
100-240V universal input – suitable for multiple countries‘ voltages.
Q11: What is the warranty period?
Nadalan offers a 1-year warranty on this power supply.
Q12: How long does shipping take?
Approximately 10 days by air freight. Tax and duty included for most countries.
Q13: Do you offer wholesale pricing?
Yes. Nadalan welcomes bulk orders and corporate partnerships. Contact us to discuss custom negotiations and volume pricing.
Still Not Sure? Contact Us
Dell OptiPlex SFF power supplies use proprietary connectors, so compatibility is critical. If you‘ve checked the model numbers but still aren’t 100% sure, don‘t guess. Send us a photo of your original power supply’s label and the connectors, and we will confirm compatibility for you.
Contact Nadalan:
- Email: gc_ds@sina.com
- Phone / WhatsApp: +0086 18062682902
Order today and get your Dell OptiPlex SFF desktop back up and running with reliable power.