Name: FSP DAGGER PRO ATX3.0(PCIe5.0) 850W power supply unit 20+4 pin ATX SFX Black
Brand: FSP/Fortron
SKU: cmnozhn59dkbtnst2lakyrckv
Availability: InStock

Compare prices

Sort by:

New

Free delivery

£147.99

Free delivery

View deal

Affiliate link

Report an error

Description

FSP DAGGER PRO 850W Power supply unit SFX SFX3.3 Black. Total power: 850 W, AC input voltage: 100 - 240 V, AC input frequency: 50/60 Hz. Motherboard power connector: 20+4 pin ATX, Motherboard power cable length: 35 cm, SATA power cable length: 450 mm. Purpose: PC, Power supply unit (PSU) form factor: SFX, 80 PLUS certification: 80 PLUS Gold. Product colour: Black, Cooling type: Active, Fan diameter: 9.2 cm. Cables included: CPU, PCIe, Peripheral (Molex), SATA

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

Full specifications

Marque	FSP/Fortron
Référence fabricant	ppa8503902
EAN	4713224527968

The FSP DAGGER PRO ATX3.0(PCIe5.0) 850W power supply unit 20+4 pin ATX SFX Black in its market context in 2026

Choosing the FSP DAGGER PRO ATX3.0(PCIe5.0) 850W power supply unit 20+4 pin ATX SFX Black means opting for the expertise of FSP/Fortron in the Informatique category. Its price starting from £147.99 makes it a serious option on the market. Buyers interested in this brand also look at the FSP Vita power supply unit 750 W 20+4 pin ATX ATX Black to complete their comparison. On Compiral, all displayed prices are updated regularly and retailers are selected for their reliability and quality of customer service.

FSP/Fortron: what this model offers

What buyers remember about the FSP DAGGER PRO ATX3.0(PCIe5.0) 850W power supply unit 20+4 pin ATX SFX Black: consistent quality, intuitive use and a price that stays within market norms for this level of performance. The positioning of FSP/Fortron on the Informatique segment ensures access to spare parts and a structured after-sales service, which matters greatly in the long run. A solid choice in 2026, whether for a new purchase or to replace a failing device. Also discover the FSP Vita power supply unit 850 W 20+4 pin ATX ATX Black from the same brand for a second level of comparison.

The strengths that really make a difference

What truly differentiates the FSP DAGGER PRO ATX3.0(PCIe5.0) 850W power supply unit 20+4 pin ATX SFX Black from other products in the Informatique category comes down to a few concrete points: the build quality typical of FSP/Fortron, its availability from many retailers and accessible after-sales support. These criteria, often decisive for buyers, favour this model over alternatives on the market in 2026. Compare with the FSP Vita power supply unit 750 W 20+4 pin ATX ATX Black if you wish to explore other models from the brand.

What you need to know before buying

Before buying the FSP DAGGER PRO ATX3.0(PCIe5.0) 850W power supply unit 20+4 pin ATX SFX Black, check the following points: stock availability at your chosen retailer, the returns policy, warranty period and delivery charges. These details are accessible from our offers table at the top of this page. FSP/Fortron generally offers a well-structured after-sales network for the Informatique category.

Market price ranges in 2026

Range	Indicative price	For whom	What you get
Entry-level	Under 384300 £	Tight budget, occasional use	Essential features, reliable for beginners
Mid-range	384300 £ to 896710 £	Regular daily use	Good value for money, solid performance
High-end	Over 896710 £	Demanding users	The best of the category, all advanced features

Comparing prices before buying the FSP DAGGER PRO ATX3.0(PCIe5.0) 850W power supply unit 20+4 pin ATX SFX Black can save you between £10 and £40 depending on the retailer and the time of year. Use Compiral to never overpay for your online purchases. The 1 offer listed on this page all come from verified retailers with sales conditions compliant with consumer protection law.

Frequently asked questions about FSP DAGGER PRO ATX3.0(PCIe5.0) 850W power supply unit 20+4 pin ATX SFX Black

Is there a refurbished version of the FSP DAGGER PRO ATX3.0(PCIe5.0) 850W power supply unit 20+4 pin ATX SFX Black?

Refurbished versions of the FSP DAGGER PRO ATX3.0(PCIe5.0) 850W power supply unit 20+4 pin ATX SFX 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.

When do prices for the FSP DAGGER PRO ATX3.0(PCIe5.0) 850W power supply unit 20+4 pin ATX SFX Black drop during the year?

Prices for the FSP DAGGER PRO ATX3.0(PCIe5.0) 850W power supply unit 20+4 pin ATX SFX Black typically drop during Black Friday (November), the January sales and the summer sales (July). Promotional deals are also common around Cyber Monday and the holiday season. Our price history lets you spot trends and assess whether a price drop is likely soon in the Informatique category.

Is delivery free for the FSP DAGGER PRO ATX3.0(PCIe5.0) 850W power supply unit 20+4 pin ATX SFX Black at all retailers?

Free delivery is not guaranteed for the FSP DAGGER PRO ATX3.0(PCIe5.0) 850W power supply unit 20+4 pin ATX SFX Black at every retailer. Some include it in their price, others charge separately. On Compiral, use the free delivery filter to display only offers with free postage. The total price shown in our table always includes delivery costs for a true cost comparison.

How do I return the FSP DAGGER PRO ATX3.0(PCIe5.0) 850W power supply unit 20+4 pin ATX SFX Black if I am not satisfied?

You have a 14-day right of withdrawal for any online purchase, applicable to the FSP DAGGER PRO ATX3.0(PCIe5.0) 850W power supply unit 20+4 pin ATX SFX Black regardless of the retailer. Precise return conditions vary by retailer: check their returns policy before buying. Statutory consumer rights protect you in the event of a defect discovered after delivery.

Is the FSP DAGGER PRO ATX3.0(PCIe5.0) 850W power supply unit 20+4 pin ATX SFX Black worth its price in 2026?

In 2026, the FSP DAGGER PRO ATX3.0(PCIe5.0) 850W power supply unit 20+4 pin ATX SFX Black is listed from £147.99 at our partner retailers. This price is consistent with the positioning of FSP/Fortron in the Informatique category. To judge whether this price is currently attractive, check the price history on our product page. Also compare the total price including delivery to avoid any surprises at checkout.