Professional angle
Professional angle 250W Power Supply Unit PSU
Bottom line: The Professional angle 250W Power Supply Unit PSU ($45.99 on Amazon as of 2026-10-07): Drop-in 250W replacement for Dell OptiPlex 390, 790, 990 and 3010 DT desktops; main trade-off: 250W ceiling leaves no headroom for adding a dedicated graphics card.
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*Price sourced from Amazon.com. Last updated 2026-10-07. Price and availability subject to change.
Pros & Cons
Pros
- ✓ Drop-in 250W replacement for Dell OptiPlex 390, 790, 990 and 3010 DT desktops
- ✓ Cross-references 18 Dell part numbers, including CYY97, 3WFNF, 6MVJH and XFWXR
- ✓ Matches OEM models L250NS-00, H250AD-00, F250AD-00, D250AD-00 and PS-5251-08D
- ✓ Also fits Inspiron 540s-580s, Vostro 200s-400s and Studio 540s slim systems
- ✓ 24-pin and 4-pin ATX plus three SATA leads; 100-240V universal AC input
Cons
- ✗ 250W ceiling leaves no headroom for adding a dedicated graphics card
- ✗ Made for DT chassis; confirm your OptiPlex is not the MT or SFF version
- ✗ Only SATA drive leads are listed, with no Molex or floppy connectors
- ✗ Third-party unit, not Dell OEM; no efficiency rating is stated
Manufacturer description
Compatible Model Number:L250NS-00, D250AD-00, PS-5251-08D, PS-5251-5, H250AD-00, D250A1005L, D250ED-00, DPS-250AB-67 A, F250ED-00, D-0250ADU00-101, D250ND-00, REF, DPS-250AB-73A, AC250NS-00, PCA038, TFX0250D5WB, D250AD-01 D250ED-01, DPS-250AB-68 A, F250AD-00, D-0250ADU00-201, PC7068, HP-D2506R0, PS-5251-5, DPS-250AB-36, TFX0250D5WB, H250ED-00, D250E006L, PS-5251-06Compatible Part Number:CYY97, 7GC81, HY6D2, WX9P8, 6MVJH, YJ1JT,3MV8H, 3WFNF, 5FFR5, 76VCK, MPX3V, PWJ55, T498G, W208D, W209D, W210D, X3KJ8, XFWXRCompatible Systems:DELL Optiplex 390 790 990 3010, Inspiron 537s 540s 545s 546s 560s…
SpecPicks Verdict
SpecPicks scored Professional angle 250W Power Supply Unit PSU using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies category. Professional angle's power supplies lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for power supplies of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Key Features
- Compatible Systems: DELL Optiplex 390 790 990 3010, Inspiron 537s 540s 545s 546s 560s 570s 580s 620s, Vostro 200s 220s 230s 260s 400s, Studio 540s 537s 560s Slim Desktop DT Systems
- Compatible Part Number:CYY97, 7GC81, HY6D2, WX9P8, 6MVJH, YJ1JT,3MV8H, 3WFNF, 5FFR5, 76VCK, MPX3V, PWJ55, T498G, W208D, W209D, W210D, X3KJ8, XFWXR
- Compatible Model Number:L250NS-00, D250AD-00, PS-5251-08D, PS-5251-5, H250AD-00, D250A1005L, D250ED-00, DPS-250AB-67 A, F250ED-00, D-0250ADU00-101, D250ND-00, REF, DPS-250AB-73A, AC250NS-00, PCA038, TFX0250D5WB, D250AD-01 D250ED-01, DPS-250AB-68 A, F250AD-00, D-0250ADU00-201, PC7068, HP-D2506R0, PS-5251-5, DPS-250AB-36, TFX0250D5WB, H250ED-00, D250E006L, PS-5251-06
- AC Input(50-60Hz): 100-240V~/4.4A, DC Output: Max Output 250W
- Connectors: P1 - 24-Pin ATX Power, P2 - 4-Pin ATX Power, P3 - SATA Power, P8 - SATA Power, P9 - SATA Power
Full Specifications
| Brand | Professional angle |
|---|---|
| Weight | 498g |
| Wattage | 250 watts |
| Connectors | P1 - 24-Pin ATX Power, P2 - 4-Pin ATX Power, P3 - SATA Power, P8 - SATA Power, P9 - SATA Power |
| Model Name | L250NS-00, D250AD-00, H250AD-00 |
| Form Factor | ATX |
| Model Number | 7545733447 |
| Connector Type | 24_pin_atx, 4_pin_atx, SATA |
| Cooling Method | Air |
| Output Wattage | 250 Watts |
| Item Dimensions | 6.7 x 3.35 x 2.6 inches |
| Mfr Part Number | 7545733447 |
| AC Input(50-60Hz) | 100-240V~/4.4A, DC Output: Max Output 250W |
| Compatible Devices | Personal Computer |
| Connector Quantity | 5 |
| Power Supply Design | External |
| Maximum Input Voltage | 240 Volts |
| Minimum Input Voltage | 100 Volts |
| Compatible Part Number | CYY97, 7GC81, HY6D2, WX9P8, 6MVJH, YJ1JT,3MV8H, 3WFNF, 5FFR5, 76VCK, MPX3V, PWJ55, T498G, W208D, W209D, W210D, X3KJ8, XFWXR |
| Item dimensions L x W x H | 6.7 x 3.35 x 2.6 inches |
| Full listing title | 250W L250NS-00 H250AD-00 F250AD-00 Power Supply Unit PSU for DELL Optiplex 390 790 990 3010 DT Inspiron 530s 537s 540s 545s 546s 560s 570s 580s Vostro 200s 220s 230s 400s Studio 540s Slim DT Systems |
Ready to buy?
250W L250NS-00 H250AD-00 F250AD-00 Power Supply Unit PSU for DELL Optiplex 390 790 990 3010 DT Inspiron 530s 537s 540s 545s 546s 560s 570s 580s Vostro 200s 220s 230s 400s Studio 540s Slim DT Systems is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-07. Price and availability subject to change.
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