EVGA
EVGA 450 B3, 80+ BRONZE 450W, Fully Modular, EVGA ECO Mode, 5 Year Warranty, Compact 150mm Size, Power Supply 220-B3-0450-V1
Status: EVGA 450 B3: Unavailable on Amazon as of . SpecPicks has no in-stock listing with matching specs on file; the search below lists current offers. eBay sellers may still list this model new or used.
Bottom line: The EVGA 450 B3, 80+ BRONZE 450W, Fully Modular, EVGA ECO Mode, 5 Year: Fully modular at 450W — rare at this wattage, cuts unused cables entirely; main trade-off: 450W caps you to entry or mid-range GPUs, no high-TDP cards.
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Currently unavailable on Amazon. Not the same product — 3 in-stock alternatives:
Similar: EVGA SuperNOVA 220-G3-1000-X1 — $449.99 on Amazon as of 2026-10-06 12:20 UTC (price may vary).
Similar: darkFlash PMT850 Fully Modular Power Supply ATX… — $66.49 on Amazon as of 2026-10-07 04:20 UTC (price may vary).
Similar: EVGA Supernova 1000 P2 80+ Platinum — $389.99 on Amazon as of 2026-10-06 12:20 UTC (price may vary).
Pros & Cons
Pros
- ✓ Fully modular at 450W — rare at this wattage, cuts unused cables entirely
- ✓ Compact 150mm depth fits mATX and mini-tower cases
- ✓ ECO Mode stops the fan at low to medium loads for silent idle
- ✓ Voltage regulation rated under 2% per EVGA
- ✓ 5-year global warranty from EVGA
Cons
- ✗ 450W caps you to entry or mid-range GPUs, no high-TDP cards
- ✗ 80 PLUS Bronze, not Gold or Platinum efficiency
- ✗ Fan spins up audibly once load passes the ECO threshold
- ✗ Modular cables are flat ribbon style, not individually sleeved
Manufacturer description
The EVGA 450 B3 is a fully modular 450W power supply built for compact ATX and small-form-factor builds where cable clutter and depth are the limiting factors. At 150mm long, it clears the bay in most mATX and mini-tower chassis, and because every cable detaches, you run only the connectors your build actually needs. That matters for airflow in a cramped case more than any single spec on the box. Electrically, the B3 is 80 PLUS Bronze certified and holds 85% efficiency or better under typical loads, with EVGA rating voltage regulation tighter than 2% — meaningful headroom for a mid-range…
SpecPicks Verdict
SpecPicks scored EVGA 450 B3, 80+ BRONZE 450W, Fully Modular, EVGA ECO Mode, 5 Year… using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies category. EVGA's power supplies lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for power supplies of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Frequently Asked Questions
Is the EVGA 450 B3 fully modular?
Yes. Every cable detaches, including the 24-pin, so you install only the connectors your build needs. That is unusual in the 450W class and helps airflow in compact cases.
Will a 450W power supply run a gaming PC?
It suits entry and mid-range single-GPU builds. 450W does not leave headroom for high-TDP graphics cards, so check your GPU maker's recommended PSU wattage before buying.
How long is the EVGA 450 B3?
150mm, which EVGA notes is shorter than its predecessors. That depth clears the PSU bay in most mATX and mini-tower chassis with room for cable routing behind it.
What does EVGA ECO Mode actually do?
It is an intelligent thermal control system that keeps the 130mm fan stopped at low to medium loads. The unit runs silent at idle and light use, then spins the fan up as load and temperature rise.
What warranty does the EVGA 450 B3 come with?
EVGA lists a 5-year global warranty on the B3 line. Confirm registration requirements and regional terms on the product listing before you buy.
Key Features
- EVGA 450 B3 - "Bronze 3volved"
- Fully Modular to reduce clutter and improve airflow
- 80 PLUS Bronze certified, with 85% efficiency or higher under typical loads
- 130mm Hydraulic Dynamic Bearing for ultra-quiet performance - EVGA ECO Intelligent Thermal Control System eliminates fan noise at low to medium loads
Full Specifications
| Brand | EVGA |
|---|---|
| Wattage | 450 watts |
| Model Name | 220-B3-0450-V1 |
| Unit Count | 1.0 Count |
| Form Factor | ATX |
| Model Number | 220-B3-0450-V1 |
| Built-In Media | AC Power, ATX Cable, EPS Cable, EVGA 450B3 Power Supply, Floppy Adapter, Four-Pin Peripheral Cable, Installation Guide, PCIE Cable, SATA Cable |
| Connector Type | 24-pin |
| Cooling Method | Air |
| Item Type Name | 450 B3, 80+ BRONZE 450W, Fully Modular, EVGA ECO Mode, 5 Year Warranty, Compact 150mm Size, |
| Number of Fans | 1 |
| Output Wattage | 450 Watts |
| Item Dimensions | 5.91 x 3.35 x 5.91 inches |
| Mfr Part Number | 220-B3-0450-V1 |
| Compatible Devices | Personal Computer |
| Power Supply Design | Full Modular |
| Warranty Description | 5 Year Warranty |
| Maximum Input Voltage | 220 Volts (AC) |
| Minimum Input Voltage | 220 Volts |
| Item dimensions L x W x H | 5.91 x 3.35 x 5.91 inches |
Ready to buy?
Amazon shows no buyable offer for EVGA 450 B3 at the last check. A similar in-stock product is EVGA SuperNOVA 220-G3-1000-X1. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
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