# Power supply Dell 305W MSMT APFC WU133 — server/desktop power module 305W

**URL:** https://aio.lv/en/product--dell-wu133--619526
**Data updated:** 2026-01-13 15:26 (EET)
**Category:** Power Supplies (PSU)
**Manufacturer:** Dell
**Manufacturer code:** WU133
**EAN:** 5711045551635
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

Dell Power Supply 305W MSMT APFC (model WU133) is a 305-watt power module designed for compatible Dell systems. It provides regulated power with active power factor correction (APFC) for improved efficiency and stable operation. Suitable for server or workstation environments where a compact 305W supply is required. Simplifies replacement and maintenance while ensuring reliable power delivery.

## Long description

Dell 305W MSMT APFC WU133 is a 305-watt power module designed for compatible Dell servers and workstations. The unit delivers regulated DC output with active power factor correction (APFC) to help maintain efficient and stable power delivery in rack or tower deployments where a compact 305W supply is required. The module is intended as a straightforward replacement or spare part to restore original power capacity and simplify maintenance tasks in enterprise and small-business systems.
Advantages
The power module provides a fixed 305W output with active power factor correction to reduce reactive power and improve overall efficiency. Its compact form factor supports space-constrained installations and hot-swap capable systems when compatible chassis and backplane support are present. The design emphasizes consistent voltage regulation under varying loads and improved thermal performance for continuous operation in server or workstation environments.
Подходит для
Замены неисправных блоков питания в совместимых серверах и рабочих станциях
Использования в небольших дата-центрах и офисных серверных шкафах
Резервного питания для минимизации простоя и упрощения обслуживания
Key specifications
Output power: 305 watts nominal
Power factor correction: active PFC (APFC)
Form factor: compact server/desktop module suitable for compatible Dell chassis
Cooling: designed for forced-air cooling in server or workstation environments
Regulation: multi-rail or single-rail regulated DC outputs depending on system integration
How to use
Before installation, ensure the system is powered down and disconnected from mains. Verify compatibility of the power module with the target Dell chassis and backplane. Insert the module into the designated bay or slot until it seats firmly and any retention latch engages. Reconnect AC power and power on the system to confirm normal operation and that the system recognizes the replacement module. For hot-swap capable systems, follow the chassis manufacturer’s hot-swap procedure to avoid load interruptions.
Usage recommendations
Install in environments with adequate airflow and temperature control, keep dust and debris away from ventilation openings, and use the module within the system’s rated ambient temperature. Schedule regular inspections and replace the unit if signs of wear, overheating, or unstable output are observed.

## FAQ

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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 Dell 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 Dell 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

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