Power supply · Voltaic
Voltaic QuietRail 850
Voltaic QuietRail 850 is a 850 W ATX unit with 80 plus gold efficiency, 4 8-pin PCIe connectors and 1 native 12V-2x6 connectors, 150 mm deep with a zero-RPM fan mode.
Best for
- Builds with a 300 W-class graphics card and room for a future upgrade
- Quiet builds — the fan stays stopped at desktop load
Main trade-offs
- 150 mm deep, which matters in compact chassis
- Acoustic index 26 on the demo scale
Lowest sample total
$135
Across 2 demo retailer offers including shipping. 1.5% below the sample-window median.
- Offers
- 2
- Updated
- Jul 28, 2026
1 in stock
Data version qgem5pedi9m3
Retailer offers
Retailer offers
Ranked by delivered total, stock and data freshness. Commission never affects this order.
| Retailer | Price | Shipping | Total | Availability | Open retailer |
|---|---|---|---|---|---|
| BitForge SupplyBest totalAffiliate partnerSample feed14-day returns · observed 4 d ago | $129.99 | $4.99 | $134.98 | In stock | Go to store |
| Nordic PartsAffiliate partnerSample feed30-day returns · observed 4 d ago | $142.99 | Free | $142.99 | Low stock | Go 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.
- Lowest
- $130
- Highest
- $142
- Median
- $137
- Current best
- $135
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
- 850 W
- Form factorcompat
- ATX
- Efficiency
- 80 PLUS Gold
- Cabling
- Fully modular
- 8-pin PCIe connectorscompat
- 4
- 12V-2x6 connectorscompat
- 1
- 12V-2x6 adapter in box
- Yes
- Depth
- 150 mm
- Zero-RPM fan mode
- Yes
- Acoustic index (lower is quieter)
- 26
Compatibility
Every pairing below was evaluated by the same rule engine the builder uses.
Case
5 of 6 compatibleWorks with Meridian Atlas A4, Meridian Compact C3, Meridian Forge F9 and 2 more.
Meridian Nano N2 accepts SFX power supplies, not ATX.
Graphics card
8 of 8 compatibleWorks with Cinder CX-7600, Cinder CX-7800 XT, Cinder CX-7900 XTQ and 5 more.
Provenance
Every canonical value carries the source it came from, when it was retrieved and how confident we are.
| Field | Source | Retrieved | Confidence |
|---|---|---|---|
adapter12v2x6Included | Manufacturer product database (demo) | Jul 28, 2026 | 95% |
adapter12v2x6Requires8Pin | Manufacturer product database (demo) | Jul 28, 2026 | 95% |
depthMm | Manufacturer product database (demo) | Jul 28, 2026 | 95% |
efficiencyRating | Manufacturer product database (demo) | Jul 28, 2026 | 95% |
formFactor | Manufacturer product database (demo) | Jul 28, 2026 | 95% |
modularity | Manufacturer product database (demo) | Jul 28, 2026 | 95% |
noiseIndex | Manufacturer product database (demo) | Jul 28, 2026 | 95% |
pcie12v2x6Connectors | Manufacturer product database (demo) | Jul 28, 2026 | 95% |
pcie8PinConnectors | Manufacturer product database (demo) | Jul 28, 2026 | 95% |
wattage | Manufacturer product database (demo) | Jul 28, 2026 | 95% |
zeroRpmMode | Manufacturer product database (demo) | Jul 28, 2026 | 95% |
Demo product
Voltaic QuietRail 850 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.