# Power Supply Unit FSP DAGGER PRO ATX3.0 850W

**URL:** https://aio.lv/en/product--fortron-ppa8503900--10453723
**Data updated:** 2026-01-13 21:32 (EET)
**Category:** Power Supplies (PSU)
**Manufacturer:** Fortron
**Manufacturer code:** PPA8503900
**EAN:** 4713224527968
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 138.99 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 114.87 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--fortron-ppa8503900--10453723

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 03.07.2026 | free |
| Pickup points | 08.07.2026 | 1.99 EUR |
| Courier delivery to door | 08.07.2026 | 4.99 EUR |

## Summary description

The FSP DAGGER PRO ATX3.0 is an 850W power supply unit designed for PCs. It features a 20+4 pin ATX connector, 80 PLUS Gold certification for efficiency, and active cooling with a 9.2 cm fan. The unit supports a wide AC input voltage range of 100-240V and includes various cables for CPU, PCIe, and SATA connections. Its compact SFX form factor makes it suitable for smaller builds.

## Long description

The Power Supply Unit FSP DAGGER PRO ATX3.0 850W is a compact SFX-format PSU engineered for desktop systems that require reliable 850 W power delivery in a small footprint. It complies with ATX 3.0 signaling and provides a 20+4 pin ATX motherboard connector, 80 PLUS Gold efficiency level and active cooling through a 92 mm fan. The unit accepts a wide AC input range and is supplied with multiple cables for CPU, PCIe and SATA devices, making it suitable for compact gaming rigs, workstations and home PCs where space is limited.
Advantages
The PSU offers high conversion efficiency meeting the 80 PLUS Gold class to reduce energy loss and heat generation under typical loads. Its compact SFX enclosure enables installation in small cases without sacrificing an 850 W power budget. Active cooling with a 92 mm fan provides balance between airflow and acoustic performance, while the inclusion of multiple output cables covers common motherboard, processor, graphics and storage connections. The wide AC input range supports international voltages for flexible deployment.
Suitable for
Compact gaming PCs with mid-to-high power graphics cards
Small form factor workstations for creative and productivity tasks
Home or office desktops requiring efficient, space-saving power delivery
System builders needing an 850 W SFX power supply for constrained chassis
Key specifications
Total continuous output power: 850 W
Rated efficiency: approximately 90% (80 PLUS Gold)
Motherboard connector: 20+4 pin ATX
Cooling: 92 mm fan (active)
Supported AC input voltage: 100–240 V
Colour: black
How to use
Install the PSU into a compatible SFX or SFX-to-ATX adapter bracket following the case manufacturer’s instructions. Connect the 20+4 pin ATX cable to the motherboard and attach the provided CPU, PCIe and SATA connectors to the respective components. Ensure proper cable routing to maintain airflow and secure all connectors before powering on. Verify that system total power draw does not exceed the rated 850 W and that the case provides adequate ventilation for the PSU fan.
Usage recommendations
Place the unit in a location with unobstructed airflow, keep dust filters clean, and match the PSU capacity to the combined peak demand of CPU, GPU and peripherals. For systems with high sustained GPU loads, monitor temperatures and consider case ventilation improvements to maintain optimal efficiency and fan noise levels.

## Specifications

### Power

| Feature | Value |
|---|---|
| Total power | 850 W |
| Efficiency | 90 % |
| Power Factor Correction (PFC) type | Active |
| Power protection features | Overheating, Over voltage, Over power, Over current, Short circuit |
| 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 |
| Input current | 12-6 |
| AC input frequency | 50/60 |
| AC input voltage | 100 - 240 |

### Ports & interfaces

| Feature | Value |
|---|---|
| Motherboard power connector | 20+4 pin ATX |
| Number of SATA power connectors | 6 |
| Peripheral (Molex) power connectors (4-pin) | 2 |
| CPU power connector (4+4 pin) | Yes |
| PCI Express power connectors (6+2 pin) | 2 |
| Cabling type | Fully-Modular |
| Motherboard power cable length | 350 mm |
| SATA power cable length | 450 |
| CPU power cable length | 450 mm |
| PCI Express power connectors (12+4 pin) | 1 |

### Performance

| Feature | Value |
|---|---|
| Purpose | PC |
| 80 PLUS certification | 80 PLUS Gold |
| Bearing technology | Ball bearing |
| ATX version | 3.0 |
| Power supply unit (PSU) form factor | SFX |

### Design

| Feature | Value |
|---|---|
| Fan diameter | 92 mm |
| Number of fans | 1 fan(s) |
| Cooling type | Active |
| Fan location | Top |
| On/off switch | Yes |
| Product colour | Black |

### Weight & dimensions

| Feature | Value |
|---|---|
| Height | 63.5 mm |
| Width | 100 mm |
| Depth | 125 mm |

### Packaging content

| Feature | Value |
|---|---|
| Cables included | CPU, PCIe, Peripheral (Molex), SATA |

## FAQ

### How much does the Power Supply Unit FSP DAGGER PRO ATX3.0 cost, and is it available for purchase?

The price is 138.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 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 03.07.2026 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 Power Supply Unit FSP DAGGER PRO ATX3.0 be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 Fortron 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 Fortron 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: total power, efficiency, motherboard power connector, 80 plus certification, fan diameter, 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.

## Image

https://aio.lv/img/cache/product/10453723/64808914_large.webp