be quiet! Power Zone 2 850W

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be quiet! Power Zone 2 850W Review & Specifications

The be quiet! Power Zone 2 850W by be quiet! is a power supply unit that provides 850 watts of power output. This unit follows the 3.1 standard and comes in a ATX size. It is certified with 80 PLUS® Platinum and rated at Platinum efficiency, reaching a peak efficiency of 94%. It features a 140 mm cooling fan with fan stop support, and is actively cooled. This PSU is modular . It delivers:

71 A on the 12V rail (1 rail(s))
20 A on the 5V rail
20 A on the 3.3V rail

Operating at 100-240 V input, it includes a 10-year warranty. Physical dimensions are 160 x 150 x 86.

Power Supply Performance

The be quiet! Power Zone 2 850W is a high power PSU, sufficient for mainstream gaming systems and content creation workstations. It provides sufficient power for systems with modern multi-core CPUs and performance-class GPUs, offering headroom for overclocking and future upgrades.

This power supply offers an exceptionally high efficiency of 94%, rated as Platinum. Such a high efficiency level indicates premium build quality, minimal energy loss, and excellent power regulation. It is typically found in top-tier PC builds designed for enthusiasts and professionals seeking the best possible performance. The 10-year warranty further reflects the manufacturer's confidence in its durability and reliability.

This PSU offers moderate value, priced at $141.1 per kilowatt. It delivers decent performance and efficiency, making it a solid mid-range choice for most PC builds. It strikes a good balance between performance and cost, especially for builders prioritizing stability without overspending.

General Information

Manufacturer	be quiet!
Power Supply Name	be quiet! Power Zone 2 850W
Current Price Amazon	$120
Amazon Price Updated	1 day, 4 hours ago.
Power Supply Available	True

Specification

Power Output	850 W
ATX Version / Form Factor	3.1 / ATX
Certifications	80 PLUS® Platinum
Efficiency Rating	Platinum
Modular / Fanless	True / False
Fan Size / Fan Stop	140 mm / True
Dimensions	160 x 150 x 86
Warranty	10 years

Performance

Input Voltage	100-240 V
Number of 12 V Rails	1
Output 12V / 5V / 3.3V	71 A / 20 A / 20 A
Maximum Efficiency	94%
Price per kW	141.1 USD/kW

be quiet! Power Zone 2 850W Compared to Similar Performance PSUs

Power Supply Price / Performance Table

Power_Supply (Desc)	Price (Desc)	Quality_&_Perf (Desc)	Q&P/Price (Desc)	USD/Kilowatt (Desc)
Thermaltake Toughpower GF3 1000W Thermaltake Toughpower GF3 1000W View detailed specs, charts, and comparison for this Power Supply.	$199 Thermaltake Toughpower GF3 1000W Price Not Available Last known price from Amazon. Currently unavailable. Click to view this PSU on Amazon. \| ↑ 74.6% Thermaltake Toughpower GF3 1000W Price Change Price increased from the last update.	79.9%	40.1%	199.0 199.0
Seasonic Focus GX-1000 White Seasonic Focus GX-1000 White View detailed specs, charts, and comparison for this Power Supply.	$194 Seasonic Focus GX-1000 White Current Amazon Price Click to view this PSU on Amazon. \| ↑ 2.2% Seasonic Focus GX-1000 White Price Change Price increased from the last update.	79.9%	41.1%	194.3 194.3
MSI MPG A1000GS MSI MPG A1000GS View detailed specs, charts, and comparison for this Power Supply.	$105 MSI MPG A1000GS Current Amazon Price Click to view this PSU on Amazon. \| ↓ -4.1% MSI MPG A1000GS Price Change Price decreased from the last update.	79.9%	76.1%	105.0 105.0
MSI MAG A1000GL MSI MAG A1000GL View detailed specs, charts, and comparison for this Power Supply.	$102 MSI MAG A1000GL Current Amazon Price Click to view this PSU on Amazon. \| 0.0% MSI MAG A1000GL Price Change No significant price change detected.	79.9%	78.2%	102.2 102.2
be quiet! Pure Power 13 M 850W be quiet! Pure Power 13 M 850W View detailed specs, charts, and comparison for this Power Supply.	$110 be quiet! Pure Power 13 M 850W Current Amazon Price Click to view this PSU on Amazon. \| 0.0% be quiet! Pure Power 13 M 850W Price Change No significant price change detected.	78.3%	71.2%	129.3 129.3
be quiet! Power Zone 2 850W be quiet! Power Zone 2 850W View detailed specs, charts, and comparison for this Power Supply.	$120 be quiet! Power Zone 2 850W Current Amazon Price Click to view this PSU on Amazon. \| 0.0% be quiet! Power Zone 2 850W Price Change No significant price change detected.	78.3%	65.3%	141.1 141.1
Lian Li Edge Series-850W Lian Li Edge Series-850W View detailed specs, charts, and comparison for this Power Supply.	$128 Lian Li Edge Series-850W Price Not Available Last known price from Amazon. Currently unavailable. Click to view this PSU on Amazon. \| ↓ -25.8% Lian Li Edge Series-850W Price Change Price decreased from the last update.	77.9%	61.1%	150.1 150.1
ASUS ROG Loki SFX-L 850W Platinum ASUS ROG Loki SFX-L 850W Platinum View detailed specs, charts, and comparison for this Power Supply.	$231 ASUS ROG Loki SFX-L 850W Platinum Current Amazon Price Click to view this PSU on Amazon. \| ↑ 6.6% ASUS ROG Loki SFX-L 850W Platinum Price Change Price increased from the last update.	77.9%	33.8%	271.5 271.5
ASUS ROG Loki SFX-L 850W Platinum White… ASUS ROG Loki SFX-L 850W Platinum White Edition View detailed specs, charts, and comparison for this Power Supply.	$260 ASUS ROG Loki SFX-L 850W Platinum White Edition Current Amazon Price Click to view this PSU on Amazon. \| 0.0% ASUS ROG Loki SFX-L 850W Platinum White Edition Price Change No significant price change detected.	77.9%	30.0%	305.9 305.9

PSU Comparison and Detail Specifications Table

Specification	Thermaltake Toughpower GF3 10… Thermaltake Toughpower GF3 1000W View detailed specs, charts, and comparison for this Power Supply.	Seasonic Focus GX-1000 White Seasonic Focus GX-1000 White View detailed specs, charts, and comparison for this Power Supply.	MSI MPG A1000GS MSI MPG A1000GS View detailed specs, charts, and comparison for this Power Supply.	MSI MAG A1000GL MSI MAG A1000GL View detailed specs, charts, and comparison for this Power Supply.	No image available be quiet! Pure Power 13 M 850W be quiet! Pure Power 13 M 850W View detailed specs, charts, and comparison for this Power Supply.	be quiet! Power Zone 2 850W be quiet! Power Zone 2 850W View detailed specs, charts, and comparison for this Power Supply.	Lian Li Edge Series-850W Lian Li Edge Series-850W View detailed specs, charts, and comparison for this Power Supply.	ASUS ROG Loki SFX-L 850W Plat… ASUS ROG Loki SFX-L 850W Platinum View detailed specs, charts, and comparison for this Power Supply.	ASUS ROG Loki SFX-L 850W Plat… ASUS ROG Loki SFX-L 850W Platinum White Edition View detailed specs, charts, and comparison for this Power Supply.
Perf Chart
Price	$199❗ Thermaltake Toughpower GF3 1000W Price Not Available Last known price from Amazon. Currently unavailable. ↑ 74.6% Thermaltake Toughpower GF3 1000W Price Change Price increased from the last update.	$194 Seasonic Focus GX-1000 White Current Amazon Price Click to view this PSU on Amazon. ↑ 2.2% Seasonic Focus GX-1000 White Price Change Price increased from the last update.	$105 MSI MPG A1000GS Current Amazon Price Click to view this PSU on Amazon. ↓ -4.1% MSI MPG A1000GS Price Change Price decreased from the last update.	$102 MSI MAG A1000GL Current Amazon Price Click to view this PSU on Amazon. 0.0% MSI MAG A1000GL Price Change No significant price change detected.	$110 be quiet! Pure Power 13 M 850W Current Amazon Price Click to view this PSU on Amazon. 0.0% be quiet! Pure Power 13 M 850W Price Change No significant price change detected.	$120 be quiet! Power Zone 2 850W Current Amazon Price Click to view this PSU on Amazon. 0.0% be quiet! Power Zone 2 850W Price Change No significant price change detected.	$128❗ Lian Li Edge Series-850W Price Not Available Last known price from Amazon. Currently unavailable. ↓ -25.8% Lian Li Edge Series-850W Price Change Price decreased from the last update.	$231 ASUS ROG Loki SFX-L 850W Platinum Current Amazon Price Click to view this PSU on Amazon. ↑ 6.6% ASUS ROG Loki SFX-L 850W Platinum Price Change Price increased from the last update.	$260 ASUS ROG Loki SFX-L 850W Platinum White Edition Current Amazon Price Click to view this PSU on Amazon. 0.0% ASUS ROG Loki SFX-L 850W Platinum White Edition Price Change No significant price change detected.
Price per kW	199.0 USD/kW	194.3 USD/kW	105.0 USD/kW	102.2 USD/kW	129.3 USD/kW	141.1 USD/kW	150.1 USD/kW	271.5 USD/kW	305.9 USD/kW
Manufacturer	Thermaltake	Seasonic	MSI	MSI	be quiet!	be quiet!	Lian Li	ASUS	ASUS
Wattage	1000 W	1000 W	1000 W	1000 W	850 W	850 W	850 W	850 W	850 W
Ver. / FF	3.0 / ATX	3.0 / ATX	3.1 / ATX	3.1 / ATX	3.1 / ATX	3.1 / ATX	3.1 / ATX	3.1 / SFX	3.1 / SFX
Efficiency	Gold (90%)	Gold (90%)	Gold (90%)	Gold (90%)	Gold (94%)	Platinum (94%)	Platinum (93%)	Platinum (93%)	Platinum (93%)
12V Rails	1 / 83 A	1 / 83 A	1 / 83 A	1 / 83 A	1 / 71 A	1 / 71 A	1 / 71 A	1 / 71 A	1 / 71 A
12V/5V/3.3V	83 A / 22 A / 22 A	83 A / 25 A / 25 A	83 A / 22 A / 22 A	83 A / 22 A / 22 A	70 A / 22 A / 22 A	71 A / 20 A / 20 A	70 A / 20 A / 20 A	71 A / 20 A / 20 A	71 A / 20 A / 20 A
Fan Size	135 mm	120 mm	135 mm	135 mm	120 mm	140 mm	120 mm	120 mm	120 mm
Modular	✔️	✔️	✔️	✔️	✔️	✔️	✔️	✔️	✔️
Fan Stop	✔️	✔️	✔️	❌	✔️	✔️	❌	✔️	✔️
Fanless	❌	❌	❌	❌	❌	❌	❌	❌	❌
Dimensions	150mm(W) x 86mm(H) x 160mm(D)	140 × 150 × 86 mm	150 x 150 x 86 mm	150 x 150 x 86 mm	160 x 150 x 86	160 x 150 x 86	(D)182 mm x (W)86 mm x (H)150 mm	125 x 125 x 63.5 mm	125 x 125 x 63.5 mm
Warranty	10 years	10 years	10 years	10 years	10 years	10 years	10 years	10 years	10 years

Power Supply Specification Table

Power_Supply (Desc)	Wattage (Desc)	ATX Ver / FF / Modular	Efficiency	12V Rails / Amp	Output 12V/5V/3.3V	Warranty
Thermaltake Toughpower GF3 1000W Thermaltake Toughpower GF3 1000W View detailed specs, charts, and comparison for this Power Supply.	1000 W	3.0 / ATX / True	Gold, 90%	1 / 83.00 A	83 A / 22 A / 22 A	10 years
Seasonic Focus GX-1000 White Seasonic Focus GX-1000 White View detailed specs, charts, and comparison for this Power Supply.	1000 W	3.0 / ATX / True	Gold, 90%	1 / 83.00 A	83 A / 25 A / 25 A	10 years
MSI MPG A1000GS MSI MPG A1000GS View detailed specs, charts, and comparison for this Power Supply.	1000 W	3.1 / ATX / True	Gold, 90%	1 / 83.00 A	83 A / 22 A / 22 A	10 years
MSI MAG A1000GL MSI MAG A1000GL View detailed specs, charts, and comparison for this Power Supply.	1000 W	3.1 / ATX / True	Gold, 90%	1 / 83.00 A	83 A / 22 A / 22 A	10 years
be quiet! Pure Power 13 M 850W be quiet! Pure Power 13 M 850W View detailed specs, charts, and comparison for this Power Supply.	850 W	3.1 / ATX / True	Gold, 94%	1 / 70.90 A	70 A / 22 A / 22 A	10 years
be quiet! Power Zone 2 850W be quiet! Power Zone 2 850W View detailed specs, charts, and comparison for this Power Supply.	850 W	3.1 / ATX / True	Platinum, 94%	1 / 71.00 A	71 A / 20 A / 20 A	10 years
Lian Li Edge Series-850W Lian Li Edge Series-850W View detailed specs, charts, and comparison for this Power Supply.	850 W	3.1 / ATX / True	Platinum, 93%	1 / 70.80 A	70 A / 20 A / 20 A	10 years
ASUS ROG Loki SFX-L 850W Platinum ASUS ROG Loki SFX-L 850W Platinum View detailed specs, charts, and comparison for this Power Supply.	850 W	3.1 / SFX / True	Platinum, 93%	1 / 71.00 A	71 A / 20 A / 20 A	10 years
ASUS ROG Loki SFX-L 850W Platinum White… ASUS ROG Loki SFX-L 850W Platinum White Edition View detailed specs, charts, and comparison for this Power Supply.	850 W	3.1 / SFX / True	Platinum, 93%	1 / 71.00 A	71 A / 20 A / 20 A	10 years