# Power Supply 1stCOOL WHITE STORM 550, 550W

**URL:** https://aio.lv/en/product--1stcool-ecp-550a-12-85--4380392
**Data updated:** 2026-01-07 09:57 (EET)
**Category:** Power Supplies (PSU)
**Manufacturer:** 1stCool
**Manufacturer code:** ECP-550A-12-85
**EAN:** 8594192890041
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

The 1stCOOL WHITE STORM 550 power supply offers a reliable 550W output with APFC and 85% efficiency. Designed for ATX systems, it ensures stable performance and energy savings. Ideal for gamers and professionals seeking quality and durability in their builds.

## Long description

The 1stCOOL WHITE STORM 550 is an ATX power supply that delivers 550W continuous output with active power factor correction (APFC) and approximately 85% efficiency. Designed for standard desktop builds, it provides stable voltage rails and compatibility with modern motherboards and peripherals.
Advantages
The PSU combines a 550W rated power with APFC to improve power delivery and reduce reactive power. With an ATX 24-pin motherboard connector and multiple peripheral connectors including PCIe 8-pin, SATA 15-pin, Molex and FDD, it supports a range of components and drives. The unit’s efficiency near 85% helps lower electricity consumption compared to lower-efficiency models.
Suitable for
Home and office ATX desktop systems
Entry-level to mid-range gaming PCs
Workstations requiring stable 550W supply
Systems with multiple SATA drives and legacy Molex peripherals
Key specifications
Form factor: ATX
Rated power: 550W
Efficiency: ~85%
APFC: Yes
Motherboard connector: ATX 24-pin
Connectors: PCIe 8-pin, SATA 15-pin, Molex, FDD
Brand: 1stCOOL, Model/MPN: ECP-550A-12-85, EAN: 8594192890041
How to use
Install the power supply into a compatible ATX case following the case manufacturer’s instructions. Connect the ATX 24-pin connector to the motherboard main power socket and the PCIe 8-pin connector to the graphics card if required. Attach SATA power cables to storage drives and Molex/FDD connectors to legacy peripherals as needed. Ensure all connections are secure before powering on and verify correct fan operation and stable system boot.
Usage recommendations
Use the 1stCOOL WHITE STORM 550 in systems where total component power draw does not consistently exceed 80% of the rated 550W to maintain efficiency and headroom. Ensure adequate case airflow and periodically check cable connections and dust buildup for reliable long-term operation.

## FAQ

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All 1stCool products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized 1stCool service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

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