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Power supply · Voltaic

Voltaic QuietRail 550

Current productReleased 2025MPN VLC-QR550GTIN 0900000000062

Voltaic QuietRail 550 is a 550 W ATX unit with 80 plus gold efficiency, 2 8-pin PCIe connectors and 0 native 12V-2x6 connectors, 140 mm deep with a zero-RPM fan mode.

Best for

  • Mid-range builds where the graphics card stays under 250 W
  • Quiet builds — the fan stays stopped at desktop load

Main trade-offs

  • 140 mm deep, which matters in compact chassis
  • No native 12V-2x6 connector for the newest cards

Lowest sample total

$80

Sample data

Across 3 demo retailer offers including shipping. 2.6% above the sample-window median.

Offers
3

3 in stock

Updated
Jul 28, 2026

Data version qgem5pedi9m3

Build a PC around this partCompare with Voltaic CoreBase 600

Retailer offers

Retailer offers

Ranked by delivered total, stock and data freshness. Commission never affects this order.

Sample data
Sample data — illustrative fixture prices from a demo feed, not live retailer quotes.
RetailerPriceShippingTotalAvailabilityOpen retailer
BitForge SupplyBest totalAffiliate partnerSample feed14-day returns · observed 4 d ago$74.99$4.99$79.98In stockGo to store
Atlas ComponentsNo affiliate linkSample feed30-day returns · observed 4 d ago$82.99Free$82.99In stockGo to store
Nordic PartsAffiliate partnerSample feed30-day returns · observed 4 d ago$77.99$7.99$85.98In stockGo to store

Sample data — illustrative fixture prices from a demo feed, not live retailer quotes. We are not the seller and take no payment. How offers are verified.

Price history

Lowest observed sample total per observation date, 9 points.

Sample data
Lowest
$74
Highest
$81
Median
$78
Current best
$80

Dashed line marks the median of the sample window. All values are illustrative fixture data.

Normalized specifications

Canonical values after unit normalization. Fields used by the compatibility engine are marked.

Continuous powercompat
550 W
Form factorcompat
ATX
Efficiency
80 PLUS Gold
Cabling
Semi-modular
8-pin PCIe connectorscompat
2
12V-2x6 connectorscompat
0
12V-2x6 adapter in box
No
Depth
140 mm
Zero-RPM fan mode
Yes
Acoustic index (lower is quieter)
22

Compatibility

Every pairing below was evaluated by the same rule engine the builder uses.

  • Case

    5 of 6 compatible

    Works with Meridian Atlas A4, Meridian Compact C3, Meridian Forge F9 and 2 more.

    Meridian Nano N2 accepts SFX power supplies, not ATX.

  • Graphics card

    6 of 8 compatible

    Works with Cinder CX-7600, Cinder CX-7800 XT, Cinder CX-7900 XTQ and 3 more.

    Nimbus NX-4080 Titanis needs 1 × 12V-2x6. Voltaic QuietRail 550 has 0 and cannot supply a compliant adapter from its 2 8-pin cables.

    Nimbus NX-4090 Ultra needs 1 × 12V-2x6. Voltaic QuietRail 550 has 0 and cannot supply a compliant adapter from its 2 8-pin cables.

Provenance

Every canonical value carries the source it came from, when it was retrieved and how confident we are.

FieldSourceRetrievedConfidence
adapter12v2x6IncludedManufacturer product database (demo)Jul 28, 202695%
adapter12v2x6Requires8PinManufacturer product database (demo)Jul 28, 202695%
depthMmManufacturer product database (demo)Jul 28, 202695%
efficiencyRatingManufacturer product database (demo)Jul 28, 202695%
formFactorManufacturer product database (demo)Jul 28, 202695%
modularityManufacturer product database (demo)Jul 28, 202695%
noiseIndexManufacturer product database (demo)Jul 28, 202695%
pcie12v2x6ConnectorsManufacturer product database (demo)Jul 28, 202695%
pcie8PinConnectorsManufacturer product database (demo)Jul 28, 202695%
wattageManufacturer product database (demo)Jul 28, 202695%
zeroRpmModeManufacturer product database (demo)Jul 28, 202695%

Demo product

Voltaic QuietRail 550 is a fictional model created for this demonstration catalog. Its specifications are internally consistent so the compatibility and scoring engines can be exercised, but it does not describe a real product.