be quiet!

be quiet! BN303 Quiet! System Power 9 700W cm Cases & Hardware PSUs

Name: be quiet! BN303 Quiet! System Power 9 700W cm Cases & Hardware PSUs
Brand: be quiet!
SKU: B07V6MCGG5

Status: be quiet! BN303 Quiet! System Power 9 700W cm…: Unavailable on Amazon as of 2026-10-21 16:27 UTC. 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.

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Bottom line: The be quiet! BN303 Quiet! System Power 9 700W cm Cases & Hardware PSUs: 700W rating suits most single-GPU gaming builds with headroom to spare; main trade-off: listing data carries only a part number, so connector counts need verifying.

Unavailable on Amazon as of 2026-10-21 16:27 UTC

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By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-21

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides. About the author →

Pros & Cons

Pros

✓ 700W rating suits most single-GPU gaming builds with headroom to spare
✓ cm variant keeps unused cables out of the case in tight mid-towers
✓ Wattage leaves upgrade room for a higher-draw graphics card later
✓ be quiet! builds its product line around low-noise PC components

Cons

✗ Listing data carries only a part number, so connector counts need verifying
✗ No 80 Plus efficiency tier stated in the available product data
✗ 700W ceiling is tight for a flagship GPU paired with a high-draw CPU
✗ Which cables detach is unclear; confirm cable-management scope first

Manufacturer description

The be quiet! Seven hundred watts is a comfortable target for a single-GPU gaming build - enough to run a modern mid-range graphics card alongside a mainstream CPU without pushing the unit to its ceiling, with headroom left over for a future GPU upgrade. The cm in the model name marks be quiet!'s cable-management variant, so unused cables stay out of the case instead of bundled behind the motherboard tray - a real gain for airflow and build time in compact mid-towers. Because the data on this listing carries only the manufacturer part number (W128287622), confirm the exact connector count…

SpecPicks Verdict

SpecPicks scored be quiet! BN303 Quiet! System Power 9 700W cm Cases & Hardware PSUs using a rating × review-volume × price-fit model applied to published specs and reviews across the pc cases category. be quiet!'s pc cases 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 pc cases 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 700W enough for my gaming PC?

700W covers typical single-GPU builds pairing a mid-range or upper-mid-range graphics card with a mainstream CPU. Add your GPU and CPU peak draw, leave 100-150W of headroom, and cross-check the wattage your GPU maker recommends before committing.

What does the cm in System Power 9 700W cm mean?

be quiet! uses the cm suffix for its cable-management versions, meaning cables detach rather than being permanently fixed to the unit. The exact list of detachable cables is not in this listing's data, so check the product page cable chart before planning your build.

Is this power supply actually quiet under load?

be quiet! designs its components around low noise, and the positive feedback from buyers points to satisfied owners. No dBA figure is published in this listing, so check the manufacturer spec sheet if you need a measured noise number.

What warranty comes with the be quiet! System Power 9 700W?

Warranty length is not included in this listing's data. Check the product listing or be quiet!'s support pages for current coverage terms and registration requirements in your region.

Will it fit a standard mid-tower case?

This is a desktop PC power supply, but the listing data here does not publish form factor or depth measurements. Confirm the unit's dimensions and form factor on the product page against your case's PSU bay clearance before ordering.

Key Features

W128287622

Full Specifications

Brand	be quiet!
Wattage	700 watts
Fan Count	1
Unit Count	1.0 Count
Form Factor	Compact (CM)
Model Number	BN303
Connector Type	FDD Adapter, SATA
Cooling Method	Air
Number of Fans	1
Output Wattage	700
Item Dimensions	5.51 x 5.91 x 3.39 inches
Mfr Part Number	BN303
Compatible Devices	Personal Computer
Maximum Input Voltage	240 Volts (AC)
Minimum Input Voltage	200 Volts (AC)
Item dimensions L x W x H	5.51 x 5.91 x 3.39 inches
System Bus Connector Type	20+4 Pin
Connector Type Used on Cable	FDD Adapter, SATA
Global Trade Identification Number	04260052187241

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