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header-product Power supply unit CHIEFTEC CSN-450C 450 W SFX 20+4 pin ATX Fully-Modular 80 PLUS Gold Black
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AiO.lv Computer Components Pc Components Power Supplies (PSU) CHIEFTEC

Power supply unit CHIEFTEC CSN-450C 450 W SFX 20+4 pin ATX Fully-Modular 80 PLUS Gold Black

CHIEFTEC CSN-450C 450 W SFX PSU Photo 1
CHIEFTEC CSN-450C 450 W SFX PSU Photo 2
CHIEFTEC CSN-450C 450 W SFX PSU Photo 3
CHIEFTEC CSN-450C 450 W SFX PSU Photo 4
CHIEFTEC CSN-450C 450 W SFX PSU Photo 5
CHIEFTEC CSN-450C 450 W SFX PSU Photo 1
CHIEFTEC CSN-450C 450 W SFX PSU Photo 2
CHIEFTEC CSN-450C 450 W SFX PSU Photo 3
CHIEFTEC CSN-450C 450 W SFX PSU Photo 4
CHIEFTEC CSN-450C 450 W SFX PSU Photo 5
CHIEFTEC CSN-450C 450 W SFX PSU Photo 1
CHIEFTEC CSN-450C 450 W SFX PSU Photo 2
CHIEFTEC CSN-450C 450 W SFX PSU Photo 3
CHIEFTEC CSN-450C 450 W SFX PSU Photo 4
CHIEFTEC CSN-450C 450 W SFX PSU Photo 5
CHIEFTEC CSN-450C 450 W SFX PSU Photo 1
CHIEFTEC CSN-450C 450 W SFX PSU Photo 2
CHIEFTEC CSN-450C 450 W SFX PSU Photo 3
CHIEFTEC CSN-450C 450 W SFX PSU Photo 4
CHIEFTEC CSN-450C 450 W SFX PSU Photo 5
Power supply unit CHIEFTEC CSN-450C 450 W SFX 20+4 pin ATX Fully-Modular 80 PLUS Gold Black
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Short description

CHIEFTEC CSN-450C is an SFX form-factor power supply unit delivering 450 W total power with 20+4 pin ATX motherboard connector and fully-modular cabling. Certified 80 PLUS Gold for up to ~90% efficiency, it supports universal 100–240 V AC input (47–63 Hz) and features active cooling via an 80 mm fan. Suited for compact PCs and HTPC builds requiring efficient, modular PSU solutions. RoHS compliant.
Warranty: 2 Years
SKU: 12263979
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Product information

Description

The Chieftec CSN-450C is a compact SFX power supply designed for small-form-factor desktop PCs. It delivers up to 450 W of continuous power with wide-range AC input (100–240 V, 47–63 Hz) and meets 80 PLUS Gold efficiency standards. The unit is fully modular and comes in a black finish with an active 80 mm cooling fan to maintain stable temperatures during normal operation.

Advantages

The CSN-450C offers high energy efficiency with an 80 PLUS Gold rating and a reported efficiency around 90%, reducing wasted heat and lowering power consumption. Its fully modular cabling simplifies installation and cable management in compact cases, while the SFX form factor provides compatibility with small builds. The included 80 mm fan provides active cooling without significantly increasing the unit’s footprint.

Suitable for

  • Small-form-factor desktop PCs and compact HTPC builds
  • Systems that require a fully modular PSU for neat cable management
  • Energy-conscious builds seeking higher efficiency (80 PLUS Gold)

When it may not be suitable

This 450 W unit is intended for modest to moderate power requirements; it may not be suitable for high-end gaming rigs with multiple graphics cards or systems with heavy overclocking that demand significantly higher wattage. Also, while SFX fits many compact cases, some larger cases or specialized enclosures may require an ATX-sized PSU.

Key specifications

  • Total power output: 450 W
  • AC input voltage: 100–240 V
  • AC input frequency: 47–63 Hz
  • Motherboard connector: 20+4 pin ATX
  • Form factor: SFX
  • Efficiency certification: 80 PLUS Gold (approx. 90% efficiency)
  • Cooling: active fan, 80 mm diameter
  • Colour: Black
  • Compliance: RoHS

How to use

Install the CSN-450C into a compatible SFX or SFX-to-ATX adapter bay following your case and power supply manuals. Connect the 20+4 pin connector to the motherboard and attach only the modular cables required for your components to keep cable clutter minimal. Ensure the PSU intake and exhaust areas have adequate airflow and connect to mains power within the 100–240 V, 47–63 Hz range. Power on the system and monitor voltages during initial use to confirm stable operation.

What to consider before purchase

  • System power requirements — verify that 450 W covers CPU and GPU peak loads
  • Case compatibility — confirm your case supports SFX or use an adapter if needed
  • Cabling needs — check included modular cables match your component connectors
  • Cooling and ventilation in your case to ensure proper PSU airflow

Usage recommendations

For compact builds, pair the Chieftec CSN-450C with a single mid-range GPU and a mainstream CPU to stay within its power envelope; use only the modular cables you need and maintain case airflow to maximize efficiency and longevity.

Specifications

Total power:
450 W
Efficiency:
90 %
Motherboard power connector:
20+4 pin ATX
80 PLUS certification:
80 PLUS Gold
Fan diameter:
80 mm
Product colour:
Black
All features

Power

Total power:
450 W
Efficiency:
90 %
Power Factor Correction (PFC) type:
Active
Power protection features:
Under voltage, Short circuit, Overload, Overheating, Over voltage, Over current
Power factor:
0.9
Combined power (+3.3V):
90 W
Combined power (+12V):
450 W
Combined power (+5V):
90 W
Max output current (+3.3V):
18 A
Max output current (+5V):
15 A
Max output current (-12V):
0.3 A
Max output current (+5Vsb):
3 A
Input current:
6
AC input frequency:
47 - 63
AC input voltage:
100 - 240
Max output current (+12V1):
37.5 A

Ports & interfaces

Motherboard power connector:
20+4 pin ATX
Floppy disk drive connector:
Yes
PCI Express connector:
Yes
Floppy drive power connector:
1
Number of SATA power connectors:
6
Peripheral (Molex) power connectors (4-pin):
3
ATX power connector (20+4 pin):
Yes
CPU power connector (4+4 pin):
Yes
PCI Express power connectors (6+2 pin):
2
Cabling type:
Fully-Modular

Performance

Purpose:
PC
80 PLUS certification:
80 PLUS Gold
ATX version:
2.3
Power supply unit (PSU) form factor:
SFX

Design

Fan diameter:
80 mm
Number of fans:
1 fan(s)
Cooling type:
Active
Fan location:
Top
Product colour:
Black

Certificates

Compliance certificates:
RoHS

Weight & dimensions

Height:
64 mm
Width:
100 mm
Depth:
125 mm

Other features

Parallel processing technology support:
CrossFire, CrossFireX, SLI

Logistics data

Harmonized System (HS) code:
84733020
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AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

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 CHIEFTEC 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 CHIEFTEC 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: 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.
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