1U Small Power Supply Guide – 250W FSPATX250W for ITX, All-in-One, POS & Industrial PCs
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Product link: https://nadalan-power.com/products/250w-1u-small-power-supply-fspatx250w
Need a Compact Power Supply for Your ITX, All-in-One, or Industrial PC? Here‘s Your 250W 1U Solution
If you are building a small form factor PC, repairing an all-in-one desktop, or maintaining industrial equipment like POS machines, gaming machines, or advertising displays, finding the right compact power supply can be challenging.
Standard ATX power supplies are too large for these applications. You need a 1U small form factor power supply that fits in tight spaces while delivering reliable power.
This guide will help you quickly identify if the 250W FSPATX250W 1U Power Supply is the right match for your device.
Quick Compatibility Check
This 250W 1U power supply is designed for a wide range of applications:
Device Types:
| Category | Compatible Devices |
| All-in-One PCs | Founder all-in-one, Fangzheng Xinrui, Fangzheng Excellence E200, IBM all-in-one, and other brand all-in-one machines |
| Industrial Equipment | Industrial control servers, industrial control computers, switches, routers |
| Retail & POS | POS machines, cash registers |
| Entertainment | Gaming machines, song machines, advertising machines |
| Small Form Factor PCs | MINI ITX chassis, 1U small chassis, desktop computers (industrial grade switch power supplies) |
| Networking | Switches, routers |
Compatible Brands:
- Interstellar Snail
- IBM
- TCL
- DELL
- HP
- Founder (Fangzheng)
✅ Special Note: The FSP220-50AP power supply can be fully universal with this unit.
Compatible Power Supply Models
This power supply replaces the following models:
| Model Number | Compatible? |
| FSPATX250W | ✅ Yes (main model) |
| FSP220-50AP | ✅ Yes (fully universal) |
| FSP200-50PLA | ✅ Yes |
| FSP150-50LE | ✅ Yes |
| FSP180-50PLB | ✅ Yes |
| FSP180-50PLA | ✅ Yes |
| HK205-93FP | ✅ Yes |
| DPS-185GB | ✅ Yes |
| DPS-220BB | ✅ Yes |
| FSP250-50PNA | ✅ Yes |
| FSP180-50PLF | ✅ Yes |
Key Specifications at a Glance
| Specification | Detail |
| Model Number | FSPATX250W |
| Power Output | 250W |
| Input Voltage | 210-230V |
| Dimensions (L×W×H) | 15 × 8 × 4 cm (150 × 80 × 40 mm) |
| Form Factor | 1U Small / 1U Silent |
| Fan | Single silent fan |
| Application | ITX chassis, all-in-one, industrial, POS, gaming |
Technical Parameters:
| Output | Current |
| +3.3V | 16.8A |
| +5V | 12A |
| +12V | 10A |
Connector Configuration
| Interface Type | Connector | Quantity |
| Motherboard Main Power | 20+4-pin | 1 |
| CPU Power | 4+4-pin | 1 |
| IDE (Molex) | IDE | 2 |
| SATA Power | SATA | 2 |
✅ Complete connectivity: This power supply includes both legacy IDE and modern SATA connectors, making it versatile for older and newer systems.
Protection Features – Comprehensive Safety
This power supply includes six protection functions for safe operation:
| Protection Type | Function |
| Overvoltage Protection (OVP) | Prevents damage from voltage spikes |
| Undervoltage Protection (UVP) | Shuts down when voltage drops too low |
| Overload Protection (OLP) | Prevents damage from excessive load |
| Overcurrent Protection (OCP) | Limits current to safe levels |
| Short Circuit Protection (SCP) | Immediately shuts down on short circuit |
🔇 Silent Operation: The fan structure is a single silent fan – quiet enough for office, home, or retail environments.
Physical Size – The 1U Standard
| Dimension | Measurement |
| Length | 15 cm (150 mm) |
| Width | 8 cm (80 mm) |
| Height | 4 cm (40 mm) |
This standard 1U small form factor is specifically designed for:
- MINI ITX chassis
- 1U small chassis
- All-in-one PC cases
- Industrial control cabinets
- POS terminals
- Gaming machines
Why Choose This 250W 1U Power Supply?
| Feature | Benefit |
| 1U Small Form Factor | Fits in tight spaces – ITX, all-in-one, industrial cabinets |
| 250W Output | Reliable power for compact systems |
| Silent Fan | Quiet operation – ideal for office, home, retail |
| Complete Protection | 6 types of protection for safe operation |
| Versatile Connectors | 20+4pin, 4+4pin CPU, SATA, IDE – all included |
| Wide Compatibility | Works with many brands (IBM, Dell, HP, Founder, TCL) |
| Industrial Grade | Designed for continuous operation |
| Direct Replacement | No modification needed – works right out of the box |
| 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:
New 250W silent small 1U power supply – for ITX small chassis, small 1U specification, standard all-in-one small 1U power supply.
This is a standard all-in-one small 1U power supply that works with:
- Founder Xinrui all-in-one
- Founder Excellence E200 all-in-one (1U small chassis)
- FSP220-50AP power supply can be fully universal
Installation Tips
- Power down and unplug your device completely.
- Open the chassis – 1U cases and all-in-one PCs have specific opening procedures.
- Measure your space – confirm 150×80×40mm fits your chassis.
- Disconnect cables from the old power supply – note where each connector goes.
- Take a photo of the connector layout before disconnecting.
- Remove the old PSU – usually held by 3-4 screws.
- Install the new PSU – secure with screws, then reconnect all cables.
- Test before closing – power on to ensure the system boots properly.
Frequently Asked Questions
Q1: What applications is this 1U power supply compatible with?
ITX chassis, all-in-one PCs, POS machines, cash registers, gaming machines, advertising machines, industrial control computers, switches, routers, and song machines.
Q2: What brands does it work with?
Interstellar Snail, IBM, TCL, DELL, HP, Founder (Fangzheng), and other all-in-one brands.
Q3: Is this compatible with the FSP220-50AP?
Yes. The FSP220-50AP power supply can be fully universal with this unit.
Q4: What are the compatible power supply models?
FSPATX250W, FSP220-50AP, FSP200-50PLA, FSP150-50LE, FSP180-50PLB, FSP180-50PLA, HK205-93FP, DPS-185GB, DPS-220BB, FSP250-50PNA, FSP180-50PLF.
Q5: What connectors does it have?
20+4-pin motherboard, 4+4-pin CPU, 2x IDE (Molex), and 2x SATA.
Q6: What are the physical dimensions?
15cm × 8cm × 4cm (150 × 80 × 40 mm) – standard 1U size.
Q7: Is it quiet?
Yes. The fan structure is a single silent fan for quiet operation.
Q8: What protection features does it have?
Overvoltage, undervoltage, overload, overcurrent, and short circuit protection.
Q9: Will this work with a standard desktop computer?
It will work if your desktop uses a 1U power supply form factor. Most standard towers use larger ATX PSUs. Measure your chassis first.
Q10: What is the input voltage range?
210-230V.
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
If you‘ve checked the specifications but still aren’t 100% sure, don‘t guess. Send us a photo of your original power supply’s label, and we will confirm compatibility for you.
Contact Nadalan:
- Email: gc_ds@sina.com
- Phone / WhatsApp: +0086 18062682902
Order today and get your ITX, all-in-one, or industrial device back up and running with reliable, silent 1U power!