---
product_id: 35289746
title: "Slimline Power Supply Upgrade for SFF Desktop Computer - Fits: Bestec FLX-250F1-I, FLX-250F1-J, FLX-250F1-K, FLX-250"
brand: "generic power supplies"
price: "R2410"
currency: ZAR
in_stock: true
url: https://www.desertcart.co.za/products/35289746-slimline-power-supply-upgrade-for-sff-desktop-computer-fits-bestec
store_origin: ZA
region: South Africa
---

# 300W power boost 40mm ball-bearing fan Multiple connector types Slimline Power Supply Upgrade for SFF Desktop Computer - Fits: Bestec FLX-250F1-I, FLX-250F1-J, FLX-250F1-K, FLX-250

**Brand:** generic power supplies
**Price:** R2410
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your small form factor with big energy and silent confidence!

## Quick Answers

- **What is this?** Slimline Power Supply Upgrade for SFF Desktop Computer - Fits: Bestec FLX-250F1-I, FLX-250F1-J, FLX-250F1-K, FLX-250 by generic power supplies
- **How much does it cost?** R2410 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/35289746-slimline-power-supply-upgrade-for-sff-desktop-computer-fits-bestec)

## Best For

- generic power supplies enthusiasts

## Why This Product

- Trusted generic power supplies brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact Yet Mighty:** TFX form factor designed for small cases without sacrificing power or reliability.
- • **Built to Last & Safe:** 1800V dielectric withstand and wide operating temperature range ensure durability.
- • **Power Up Your SFF Rig:** Upgrade to a robust 300W supply for seamless multi-device support.
- • **Whisper-Quiet Cooling:** Internal 40mm ball-bearing fan with thermal speed control keeps noise minimal.
- • **Plug & Play Compatibility:** Fits Bestec FLX-250F1 series and supports 20+4 pin, SATA, Molex, and floppy connectors.

## Overview

This Slimline Power Supply Upgrade delivers a reliable 300W output tailored for Bestec FLX-250F1 series SFF desktops. Featuring a compact TFX form factor, it includes a quiet 40mm ball-bearing fan with thermal control, multiple connector options (20+4 pin, SATA, Molex, floppy), and robust safety standards like 1800V dielectric withstand. Perfect for professionals seeking a discreet yet powerful upgrade to support additional devices with peace of mind.

## Description

300 Watts +3.3V@13A, +5V@13A, +12V1@9A, +12V2@9A, -12V@0.8A, +5VSB@2.5AIncludes internal 40mm ball-bearing fan and thermal fan speed control for maximum heat and noise dissipation. Designed for the TFX form factor to provide compact flexibility for small computer casesIt is also compatible with many main brand systems.Dielectric Withstand: Primary Frame Ground 1800V AC for 1 Second Rise time: Less than 20msTemperature Range: Operating: 0°C to +50°C on Full Load;Storage & Shipping: -20°C to +80°C Humidity: 5% - 90% on Operating, 5% - 95% on StorageConnectors1 x 20+4 pin Main Connector (works with either 20 pin or 24 pin main connector1 x 4 Pin P4 12V3 x 15 pin SATA3 x 4 pin Molex1 x 4 pin FloppyManufacturer WarrantyParts: 1 year limitedLabor: 1 year limitedBestec FLX-250F1-IFLX-250F1-JFLX-250F1-KFLX-250F1-LFLX-250F1-MFLX-250F1-W

## Features

- Guaranteed to fit your model Slimline Computer List below
- 1 x Main connector (20+4Pin)
- 1 x 12V P4 connector, 3 x 4-pin Molex Connector, 2 x SATA(Serial ATA) connector, 1 x Floppy connector
- 300 Watts - This is an upgrade with additional wattage for additional devices, this replaces lower wattage power supplies

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Generic power supplies |
| Series | sff |
| Item model number | PSU-SFF-BESTEC |
| Item Weight | 2.25 pounds |
| Product Dimensions | 6.75 x 2.5 x 3.25 inches |
| Item Dimensions  LxWxH | 6.75 x 2.5 x 3.25 inches |
| Manufacturer | Replace Power |
| ASIN | B007PENGM8 |
| Date First Available | March 28, 2012 |

## Product Details

- **Model Name:** sff
- **Brand:** Generic power supplies
- **Compatible Devices:** Personal Computer
- **Connector Type:** floppy,molex,sata
- **Output Wattage:** 300 Watts
- **Wattage:** 300.00
- **Cooling Method:** Air
- **Item dimensions L x W x H:** 6.75 x 2.5 x 3.25 inches
- **Item Weight:** 2.3 Pounds
- **Fan Count:** 1

## Images

![Slimline Power Supply Upgrade for SFF Desktop Computer - Fits: Bestec FLX-250F1-I, FLX-250F1-J, FLX-250F1-K, FLX-250 - Image 1](https://m.media-amazon.com/images/I/413wddHrJHL.jpg)
![Slimline Power Supply Upgrade for SFF Desktop Computer - Fits: Bestec FLX-250F1-I, FLX-250F1-J, FLX-250F1-K, FLX-250 - Image 2](https://m.media-amazon.com/images/I/314ZnsVWmSL.jpg)

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**Shop now:** [https://www.desertcart.co.za/products/35289746-slimline-power-supply-upgrade-for-sff-desktop-computer-fits-bestec](https://www.desertcart.co.za/products/35289746-slimline-power-supply-upgrade-for-sff-desktop-computer-fits-bestec)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-02-27*