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header-product FSP FlexGURU 300W power supply unit 20+4 pin ATX Flex ATX Black
172.99 €

FSP FlexGURU 300W power supply unit 20+4 pin ATX Flex ATX Black

FSP FlexGURU 300W power supply unit Photo 1
FSP FlexGURU 300W power supply unit Photo 2
FSP FlexGURU 300W power supply unit Photo 3
FSP FlexGURU 300W power supply unit Photo 4
FSP FlexGURU 300W power supply unit Photo 5
FSP FlexGURU 300W power supply unit Photo 1
FSP FlexGURU 300W power supply unit Photo 2
FSP FlexGURU 300W power supply unit Photo 3
FSP FlexGURU 300W power supply unit Photo 4
FSP FlexGURU 300W power supply unit Photo 5
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FSP FlexGURU 300W power supply unit 20+4 pin ATX Flex ATX Black

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Short description

The FSP FlexGURU 300W power supply unit features a 20+4 pin ATX connector, fully-modular cabling, and a compact Flex ATX form factor. It operates on an AC input voltage of 100-240V and frequency of 50-60Hz. Designed for servers, it includes one 4 cm fan with ball bearing technology for efficient cooling. The unit supports various cables including CPU, Molex, and SATA, making it versatile for different setups.
Available for order: 42 pcs.
Warranty: 2 Years
SKU: 11412982
Manufacturer: OEM
free shipment

Cheapest delivery:

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Pick-up points

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Cost

2.99 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
29.07.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
03.08.2026 {{selectedOffer.courierDeliveryString}}
From 53.99 € (Weight: 30.74 kg)
Parcel couriers
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03.08.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.89 €
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All payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment
36 months installment: from 4.81 euros per month
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Product information

Description

The FSP FlexGURU 300W power supply unit is a high-performance, compact solution designed specifically for systems requiring the Flex ATX form factor. This power supply offers a reliable 300W output and features a fully modular cabling design, allowing users to connect only the cables necessary for their specific build. With its black finish and robust construction, it integrates seamlessly into professional server environments and compact desktop chassis.

Advantages

The primary advantage of the FSP FlexGURU 300W is its fully modular design, which significantly simplifies the installation process and improves airflow within confined spaces by eliminating unnecessary cable clutter. The unit utilizes a high-quality 4 cm ball-bearing fan that ensures efficient cooling and long-term reliability even under continuous operation. Its versatile connector set, including CPU, Molex, and SATA options, provides broad compatibility with various hardware configurations, while the plug-in design allows for rapid component replacement and easier system maintenance.

Suitable for

  • Compact server builds
  • Small form factor (SFF) desktop computers
  • Industrial PC systems requiring Flex ATX power
  • Custom builds where cable management is a priority

When it may not be suitable

This power supply is not suitable for high-end gaming rigs or workstations that require significantly more than 300W of power to support power-hungry graphics cards or high-core-count processors. Additionally, it is designed specifically for the Flex ATX form factor and may not fit into standard ATX or Micro-ATX cases without appropriate mounting adapters.

Key specifications

  • Power output: 300W
  • Form factor: Flex ATX
  • Connector type: 20+4 pin ATX
  • Cooling: 4 cm ball-bearing fan
  • Input voltage: 100-240V AC
  • Input frequency: 50-60Hz
  • Cabling: Fully modular

How to use

To install the FSP FlexGURU 300W, first ensure your system chassis supports the Flex ATX form factor. Mount the unit securely using the appropriate screws provided with your case. Connect the necessary modular cables to the power supply unit before installing it if space is limited. Attach the 20+4 pin ATX connector to the motherboard, followed by the CPU, SATA, and Molex cables required for your storage drives and peripherals. Ensure all connections are firmly seated before powering on the system.

What to consider before purchase

  • Verify that your chassis supports the Flex ATX form factor dimensions.
  • Calculate your total system power consumption to ensure 300W is sufficient.
  • Check the length of the provided modular cables to ensure they reach your components.
  • Confirm that your motherboard requires a 20+4 pin ATX connector.
Usage recommendations: Regularly inspect the intake and exhaust areas of the power supply to ensure they remain free of dust accumulation, which can impede the performance of the 4 cm cooling fan and affect overall system thermal efficiency.

Specifications

Product colour:
Black
All features
Floppy disk drive connector:
Yes
Bearing technology:
Ball bearing
Input current:
6-3
Number of fans:
1 fan(s)
Motherboard power connector:
20+4 pin ATX
Floppy drive power connector:
1
Number of SATA power connectors:
4
Peripheral (Molex) power connectors (4-pin):
2
ATX power connector (20+4 pin):
Yes
CPU power connector (4+4 pin):
Yes
Combined power (+3.3V):
70 W
Combined power (+5V):
70 W
Max output current (+3.3V):
12 A
Max output current (+12V):
25 A
Max output current (+5V):
14 A
Max output current (-12V):
0.3 A
Max output current (+5Vsb):
3 A
AC input frequency:
50 - 60
AC input voltage:
100 - 240
Cabling type:
Fully-Modular
Total power:
300 W
Power supply unit (PSU) form factor:
Flex ATX

Design

Product colour:
Black
Fan diameter:
40 mm

Weight & dimensions

Height:
81.5 mm
Width:
40.5 mm
Depth:
150 mm

Packaging content

Cables included:
CPU, Peripheral (Molex), SATA

Other features

Purpose:
Server

Features

Efficiency:
90 %
Power protection features:
Over current, Under voltage, Short circuit, Over power
Power Factor Correction (PFC) type:
Active

Logistics data

Harmonized System (HS) code:
84733020

Description

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Customer reviews

Customer questions

FAQ

How much does the FSP FlexGURU 300W power supply unit cost, and is it available for purchase?

The price is 172.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 42 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 29.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

Can FSP FlexGURU 300W power supply unit be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. We work with leading banks and leasing companies in Latvia, allowing you to make your purchase on convenient terms — with a minimal down payment and a repayment period from 3 to 36 months. You can apply for credit or installments for the FSP FlexGURU 300W power supply unit online, and the application process is as simple as possible:
  • Select the product on the website and add it to your cart;
  • When placing your order, choose the payment method “Installments”;
  • Fill in the required details for the lending partner;
  • Receive a decision within a few minutes.
For more information about available payment options, interest-free installment terms, and credit conditions in Latvia, please visit the Payment page.

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 OEM 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 OEM 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. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.
warranty
14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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Secure Payment Pay the way you prefer: cash, VISA, MasterCard, Apple Pay, Google Pay, bank transfer, or 0% installment plan.
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Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.