Antec Atom Series
Antec Atom V450 450W Power Supply
Dependable everyday power for budget desktop PCs. The Antec Atom V450 combines 450W rated output, a 120mm cooling fan and a straightforward non-modular design for practical system builds.
Antec Atom V450 – Key Highlights
Rated Power
450W
For compatible everyday desktop systems
Cooling
120mm
Fan-based PSU cooling
Cable Design
Fixed
Non-modular cabling
Warranty
2 Years
Refer to the supplied warranty terms
Introduction to the Antec Atom V450
The Antec Atom V450 is a 450W non-modular power supply designed for cost-conscious desktop PC builds. It provides the essential power connections needed by compatible motherboards, processors, storage devices and select graphics cards, making it an option for home computers, office desktops and entry-level systems.
A 120mm fan helps move heat away from the power supply, while the fixed-cable design keeps installation straightforward. Its compact ATX-style dimensions suit many standard desktop cases, although the case's PSU mounting space should always be checked before purchase.
The Atom V450 is best considered for systems whose total power demand fits within its capacity. It is not a substitute for a higher-wattage PSU when building a power-hungry gaming PC or a workstation with a demanding graphics card.
Key Features of the Antec Atom V450
450W Power Output
Provides up to 450W of rated power for a suitably configured compatible desktop. Always consider the processor, graphics card and other components when sizing a PSU.
120mm Cooling Fan
The integrated 120mm fan provides airflow for PSU cooling during normal operation. Actual noise depends on workload, ambient temperature and system conditions.
Non-Modular Cabling
All power cables are attached to the unit. This makes installation simple, though unused cables need to be managed inside the cabinet.
Essential Circuit Protection
The Atom V450 product range is associated with protection features such as over-voltage and short-circuit protection. Verify the exact protection list for the model revision supplied.
Standard ATX-Style Fit
Its listed dimensions are approximately 140 × 150 × 86mm. Check the case's PSU clearance and cable-routing space before installation.
Practical Budget Choice
A straightforward option for compatible entry-level desktops where basic power delivery and affordability matter more than modular cables or premium efficiency certifications.
Cooling, Compatibility and Protection
The Antec Atom V450 uses a conventional fan-cooled PSU design and fixed power cables. Its original Atom V450 specification listings identify a 100–240V-class input range, a 120mm fan and a two-year warranty. Exact input ratings and connector counts can vary between the original Atom V450 and the later Atom V450 V2.
Protection features are intended to help safeguard the power supply and connected components against certain electrical faults. They do not replace correct PSU sizing, good ventilation, safe electrical installation or a suitable surge-protection strategy.
The original Atom V450 is an older, entry-level design. Do not assume it supports modern ATX 3.x requirements, native 12V-2x6 graphics power connectors, 80 PLUS certification or current high-power GPU recommendations unless these are explicitly confirmed for the exact unit.
Antec Atom V450 Technical Specifications
Product Name
Antec Atom V450
PSU Category
Desktop ATX Power Supply
Rated Output
450W
Modularity
Non-Modular
Cooling Fan
120mm Fan
Input Voltage
100–240V AC (listed range)
Input Frequency
47–63Hz (retailer-listed)
Dimensions
Approx. 140 × 150 × 86mm
Motherboard Connector
24-pin (20+4) ATX
CPU Power Connector
1 × 8-pin (4+4) EPS 12V
PCIe Power Connector
1 × 6+2-pin PCIe (original model listing)
SATA Connectors
4 (retailer-listed)
Peripheral Connectors
2 × 4-pin Molex (retailer-listed)
Floppy Connector
1 (retailer-listed)
Protection
Confirm exact model revision
Warranty
2 Years (listed)
Note: Specifications and connectors are based on listings for the original Antec Atom V450 IN. The V450 V2 has different published connector details. Verify the exact model code and label on the supplied unit before finalising a purchase or build.
Recommended Use Cases
Home and Office PCs
Suitable for compatible everyday desktops used for browsing, office applications, video playback and routine multitasking.
Entry-Level Builds
Can serve as a budget PSU for low-power processors and systems that do not require substantial dedicated GPU power.
Basic Upgrades
May suit a compatible older desktop receiving an SSD, additional memory or other low-power upgrades, subject to total system demand.
General-Purpose PCs
A practical option for simple builds where the required connectors and total power consumption have been checked in advance.
Before You Buy the Antec Atom V450
- Check the combined power requirements of the CPU, GPU, drives and other components. A 450W rating alone does not guarantee compatibility with every graphics card.
- Confirm the exact model revision. The original Atom V450 and Atom V450 V2 listings differ in their stated PCIe and SATA connector counts.
- Verify that your graphics card uses a connector actually supplied with the PSU. Never rely on an unsuitable adapter to compensate for missing GPU power connectors.
- Check the case's PSU mounting dimensions and allow enough room to route the fixed cables neatly.
- Do not treat this older entry-level model as a modern ATX 3.x or high-performance GPU power supply without explicit confirmation.
- Confirm the included accessories, warranty coverage and final specification sheet with the seller before ordering.
Frequently Asked Questions
1. How much power does the Antec Atom V450 provide?
The Antec Atom V450 is rated for 450W output. The suitability of that capacity depends on the complete system configuration and its power requirements.
2. Is the Antec Atom V450 modular?
No. The original Atom V450 is non-modular, meaning its power cables are permanently attached to the power supply.
3. Does it have a cooling fan?
Yes. The original Atom V450 is listed with a 120mm fan for cooling the power supply.
4. Can I use the Atom V450 for a gaming PC?
It may suit a low-power gaming system if the total demand and required connectors are compatible. Check the graphics card manufacturer's PSU recommendation before buying; many modern gaming GPUs need a more capable PSU.
5. Which motherboard connector does it use?
The original model is listed with a 24-pin (20+4) ATX motherboard connector. Check the supplied unit's label and cable set to confirm the exact revision.
6. How many PCIe connectors are included?
Retailer listings for the original Atom V450 IN show one 6+2-pin PCIe connector. The V450 V2 is listed differently, so verify the precise model before selecting a graphics card.
7. What is the warranty period?
Listings for the original Atom V450 specify a two-year warranty. Confirm the warranty terms applicable to the product supplied by your seller.
8. Is the Antec Atom V450 compatible with every ATX cabinet?
Not necessarily. Its listed dimensions are approximately 140 × 150 × 86mm, but you should check the cabinet's PSU mounting space, cable clearance and ventilation before installation.
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