Antec Atom Series
Antec Atom V550 550W Power Supply
Reliable everyday power for compatible desktop builds. The Antec Atom V550 combines 550W rated output, a 120mm cooling fan and a non-modular design for practical home, office and entry-level gaming PCs.
Antec Atom V550 – Key Highlights
Rated Output
550W
For compatible desktop configurations
Cooling
120mm
Fan-based cooling design
PCIe Power
2 Connectors
6+2-pin PCIe connectors, listed
Cable Design
Fixed
Non-modular cable layout
Introduction to the Antec Atom V550
The Antec Atom V550 is a 550W desktop power supply designed for budget-conscious PC builds. Its conventional ATX-style form factor and non-modular cabling make it a straightforward option for compatible home computers, office desktops and selected entry-level gaming systems.
The unit is listed with a 120mm cooling fan, a 24-pin motherboard power connector, an 8-pin CPU power connector and two PCIe 6+2-pin connectors. These connections can support a range of compatible components, provided the system's power requirements and the PSU's actual specifications are checked before installation.
The Atom V550 is an entry-level PSU rather than a premium, high-efficiency model. It should not be assumed to have an 80 PLUS certification or modern ATX 3.x features unless those capabilities are explicitly confirmed for the exact model being sold.
Key Features of the Antec Atom V550
550W Rated Power
Provides up to 550W rated output for compatible systems. Choose the PSU based on the complete configuration, including the processor, graphics card and connected peripherals.
120mm Cooling Fan
The integrated 120mm fan helps move heat away from the PSU. Noise and cooling performance depend on load, ambient temperature and the condition of the unit.
Dual PCIe 6+2-Pin Connectors
Published original-model specifications list two 6+2-pin PCIe connectors for compatible graphics cards. Check the GPU manufacturer's power recommendations before use.
Non-Modular Cabling
All power cables remain attached to the unit. This keeps installation simple, although unused cables require careful management inside the PC cabinet.
Circuit Protection Features
The Atom series is marketed with circuit protection features. Confirm the exact protection list for the specific V550 revision supplied, rather than assuming every revision has identical specifications.
Standard ATX-Style Dimensions
The original V550 is listed at approximately 140 × 150 × 86mm. Verify PSU clearance, mounting compatibility and cable space in your cabinet before purchasing.
Cooling, Compatibility and Protection
The Antec Atom V550 uses a conventional fan-cooled PSU design with fixed cables. Its original-model listings specify a 100–230V AC input range and a 47–63Hz input frequency range. Published details can differ between the original Atom V550 and Atom V550 V2, so check the label and documentation of the exact unit.
Circuit protection helps reduce risks associated with certain electrical faults, but it does not replace correct power-supply sizing, adequate ventilation or safe electrical installation. For a system with a dedicated GPU, make sure the power supply can handle both the total load and the card's power requirements.
The Atom V550 should not be described as an 80 PLUS-certified, ATX 3.x-compliant or native 12V-2x6-equipped PSU without model-specific documentation confirming those features. For modern high-power graphics cards, consider a PSU designed for the card's stated requirements.
Antec Atom V550 Technical Specifications
Product Name
Antec Atom V550 IN
Product Type
ATX Desktop Power Supply
Rated Output
550W
Modularity
Non-Modular
Cooling Fan
120mm Fan
Input Voltage
100–230V AC (listed)
Input Frequency
47–63Hz
Dimensions
Approx. 140 × 150 × 86mm
Motherboard Connector
1 × 24-pin (20+4) ATX
CPU Power Connector
1 × 8-pin (4+4) EPS 12V
PCIe Power Connectors
2 × 8-pin (6+2) PCIe
SATA Connectors
5 (listed)
Peripheral Connectors
2 × 4-pin Molex (listed)
Floppy Connector
1 × FDD (listed)
Power Factor Correction
Verify exact revision
Efficiency Certification
No 80 PLUS certification confirmed
Warranty
Confirm seller's supplied revision
Specification note: Published listings for the original Atom V550 IN commonly state a 2-year warranty, while some retailers list 3 years. Antec's current India catalogue also includes the Atom V550 V2. Confirm the model label, connector configuration and applicable warranty for your inventory before publishing final stock-specific details.
Recommended Use Cases
Home and Office PCs
Suitable for compatible desktops used for browsing, office applications, video playback and routine multitasking.
Entry-Level Gaming
May suit a modest gaming configuration when the graphics card's power recommendation, connector needs and overall system load are within the PSU's capabilities.
General-Purpose Builds
A practical option for everyday PC builds that need a standard motherboard connector, CPU power and conventional peripheral connections.
Basic Desktop Upgrades
Can be considered for a compatible existing system, provided the PSU's condition, required connectors and total power demand are checked.
Before You Buy the Antec Atom V550
- Check the full system's power demand, including CPU, GPU, storage and accessories. A 550W rating does not guarantee compatibility with every graphics card.
- Verify whether the product is the original Atom V550 IN or the Atom V550 V2; published specifications and warranty details can differ.
- Confirm that the GPU uses compatible power connectors. Do not rely on unsuitable adapters to compensate for missing power connections.
- Check the cabinet's PSU clearance and cable-routing space before installation.
- Do not assume 80 PLUS certification, ATX 3.x compliance or native 12V-2x6 support without official documentation for the exact model.
- Confirm the warranty terms, included accessories and final specifications with the seller before ordering.
Frequently Asked Questions
1. What is the rated output of the Antec Atom V550?
The Antec Atom V550 is rated at 550W. Whether it is suitable depends on the complete system configuration and the power requirements of its components.
2. Is the Antec Atom V550 modular?
No. The original Atom V550 is non-modular, so its power cables are permanently attached to the unit.
3. How many PCIe connectors does it have?
Published original-model listings specify two 6+2-pin PCIe connectors. Always verify the exact revision and supplied cable set before selecting a graphics card.
4. Does the Atom V550 have a cooling fan?
Yes. It is listed with a 120mm fan for PSU cooling. Actual noise levels depend on system load, temperature and operating conditions.
5. Is the Antec Atom V550 suitable for gaming?
It may be suitable for some entry-level gaming systems if the GPU's recommended PSU capacity and connector requirements are met. Check the exact graphics card specifications before buying.
6. Does it have 80 PLUS certification?
An 80 PLUS certification has not been confirmed for the original Atom V550 in the referenced listings. Do not advertise a certification unless the exact model's documentation confirms it.
7. What is the warranty period?
Published listings differ, with some specifying two years and others three years. Confirm the warranty that applies to the exact model and stock being supplied.
8. What is the difference between Atom V550 and Atom V550 V2?
The V2 is a distinct product revision listed in Antec India's current Atom range. Because published specifications and warranty terms can vary, check the model label and product documentation rather than treating both versions as identical.
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