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Description

Tiny but PowerfulThe DAGGER PRO series is compatible with most Mini-ITX and Micro ATX small form factor PCs. It is an ideal for home computer rigs but a great alternative for mini-PC enthusiasts.Advance Cable Management and Flat Ribbon CablesFully-modular design and flat ribbon cables provide easier installation. An ideal solution for applications with space constraints, enhancing overall airflow efficiency and cable management.92mm Fan Optimized for Low-noise OperationDagger PRO is included an advanced semi-fanless design that will spin over 20% loading, make silent and reduce noise under maximum operation.80 Plus® Gold CertificationDagger PRO series is a power supply with 80 PLUS® Gold Certification that guarantees to operate at a minimum of 90% efficiency at 50% load of PSU rated power and as a result to reduce lots of electricity cost.Powerful +12V Single Rail for your VGAVGA card is a component which needs greedy and stable power supporting most. The compact size DAGGER PRO series comes with a single +12V rail design that offers VGA cards full power individually and to avoid any overloading conditions.Supports High-end MotherboardFor gaming enthusiast, the DAGGER PRO 850W features dual CPU power connectors to support high-end motherboard and and provide stable power to the CPU for gaming enthusiast.Japanese electrolytic capacitorsDagger PRO series uses Japanese electrolytic capacitors to ensure a longer lifetime and protect your PSU from sudden power change!

Specifications

Total power	850 W
AC input voltage	100 - 240 V
AC input frequency	50/60 Hz
Input current	12-6 A
Power Factor Correction (PFC) type	Active
Combined power (+3.3V)	120 W
Combined power (+12V)	850 W
Combined power (+5V)	120 W
Combined power (-12V)	3.6 W
Combined power (+5Vsb)	12.5 W
Max output current (+3.3V)	20 A
Max output current (+12V)	70.83 A
Max output current (+5V)	20 A
Max output current (-12V)	0.3 A
Max output current (+5Vsb)	2.5 A
Efficiency	90%
Power protection features	Over current, Over power, Over voltage, Overheating, Short circuit
Motherboard power connector	20+4 pin ATX
Motherboard power cable length	35 cm
Number of SATA power connectors	6
SATA power cable length	450 mm
Peripheral (Molex) power connectors (4-pin)	2
PCI Express power connectors (6+2 pin)	2
PCI Express power connectors (12+4 pin)	1
PCI Express power connectors (12+4 pin) cable length	500 mm
CPU power connector (4+4 pin)	Yes
CPU power cable length	45 cm
Cabling type	Fully-Modular
80 PLUS certification	80 PLUS Gold
Purpose	PC
Power supply unit (PSU) form factor	SFX
ATX version	3.0
Bearing technology	Ball bearing
Product colour	Black
Cooling type	Active
Fan diameter	9.2 cm
Number of fans	1 fan(s)
Fan location	Top
On/off switch	Yes
Cables included	CPU, PCIe, Peripheral (Molex), SATA
Width	100 mm
Depth	125 mm
Height	63.5 mm
Warranty period	7 year(s)

Full specifications

Marque	Fsp
Référence fabricant	ppa8503902
EAN	4713224527968

Why choose the FSP DAGGER PRO 850W Power supply unit SFX SFX3.3 Black in 2026?

The FSP DAGGER PRO 850W Power supply unit SFX SFX3.3 Black is a well-regarded reference in the Périphériques informatiques category. In 2026, it remains one of the most relevant choices for those seeking to balance quality and budget. The brand Fsp has a strong reputation among consumers, reflected in its consistent availability across many partner retailers. Thanks to our comparison tool, you can see all available offers at a glance and go directly to the retailer of your choice to complete your purchase with confidence.

Technical analysis of the FSP DAGGER PRO 850W Power supply unit SFX SFX3.3 Black

Among the main strengths of the FSP DAGGER PRO 850W Power supply unit SFX SFX3.3 Black, the most notable are its competitive pricing from £156.11 and the recognition of the Fsp brand. Buyers who have already used this type of product in the Périphériques informatiques category generally highlight the effectiveness of the core functions and ease of maintenance. It is a product that suits both first-time buyers and those replacing existing equipment, with a short learning curve and stable performance over time.

What the tech specs reveal

The FSP DAGGER PRO 850W Power supply unit SFX SFX3.3 Black spec sheet details the specifications that make a difference in daily use. For a savvy buyer, this data allows objective comparison with other products in the Périphériques informatiques category. Fsp publishes precise specifications that make comparison easier and help you make an informed purchase decision. Consult the technical specifications table on this page for full details. The FSP Twins PRO 900W Power supply unit PS2 ATX Redundant ATX Black from the same brand may also interest you for a direct comparison.

In practice day to day

In daily use, the FSP DAGGER PRO 850W Power supply unit SFX SFX3.3 Black is designed to fit easily into the regular habits of Périphériques informatiques users. Fsp has optimised this model for regular use, with accessible features and simplified maintenance.

Market price ranges in 2026

Range	Indicative price	For whom	What you get
Entry-level	Under 2250 £	Tight budget, occasional use	Essential features, reliable for beginners
Mid-range	2250 £ to 5250 £	Regular daily use	Good value for money, solid performance
High-end	Over 5250 £	Demanding users	The best of the category, all advanced features

Before buying the FSP DAGGER PRO 850W Power supply unit SFX SFX3.3 Black, remember to check the total price including delivery costs. On Compiral, sorting by total price lets you immediately identify the best offer among all listed retailers. Comparing return conditions and the warranty period offered by each retailer is also a good habit before finalising your order in the Périphériques informatiques category.

Frequently asked questions about FSP DAGGER PRO 850W Power supply unit SFX SFX3.3 Black

Is the FSP DAGGER PRO 850W Power supply unit SFX SFX3.3 Black in stock?

Stock availability for the FSP DAGGER PRO 850W Power supply unit SFX SFX3.3 Black is updated in real time on Compiral. Retailers showing "In stock" can usually deliver quickly, often within 2 to 5 working days. If the product is temporarily out of stock at one retailer, check the other offers in our table. Check back regularly as stock levels change frequently in the Périphériques informatiques category.

Where can I buy the FSP DAGGER PRO 850W Power supply unit SFX SFX3.3 Black at the best price?

To buy the FSP DAGGER PRO 850W Power supply unit SFX SFX3.3 Black at the best price, compare all available offers in our table at the top of this page. The 3 offers listed include delivery costs to give you the true total cost. Sort by ascending price and filter by free delivery to quickly identify the best deal among our verified partner retailers.

How does the FSP DAGGER PRO 850W Power supply unit SFX SFX3.3 Black compare to competitors in the Périphériques informatiques category?

In the Périphériques informatiques category, the FSP DAGGER PRO 850W Power supply unit SFX SFX3.3 Black occupies a specific market segment. Compared to other available models, it stands out mainly through the balance between its features and its price. To compare objectively, consult the detailed spec sheet on this page and compare specifications with other similar products listed on our comparison tool.

Is the FSP DAGGER PRO 850W Power supply unit SFX SFX3.3 Black suitable for beginners?

Yes, the FSP DAGGER PRO 850W Power supply unit SFX SFX3.3 Black is generally appreciated by both beginners and regular users of the Périphériques informatiques category. It is quick to set up and Fsp usually provides clear documentation. If you are new to this product category, consult the spec sheet on this page to identify the key criteria to check before making your choice.

Is there a refurbished version of the FSP DAGGER PRO 850W Power supply unit SFX SFX3.3 Black?

Refurbished versions of the FSP DAGGER PRO 850W Power supply unit SFX SFX3.3 Black may be available from certain Compiral partner retailers. These refurbished products allow you to save between 20% and 40% compared to the new price while still benefiting from a warranty. Check availability in our offers table and review the warranty conditions offered by the retailer.