We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black rectangular ATX power supply unit with 120mm fan and modular cable sockets

SAMA

SAMA GP850-Black 850W ATX 3.1 fully modular power supply

SKU CH-37Q6-Z1WAG MPN GP850-Black

Fully modular 850 W ATX 3.1 unit with a 12V-2x6 connector rated for 450 W, Cybenetics Gold efficiency above 90 %, and a 120 mm fluid-dynamic-bearing fan

  • Max wattage850 W
  • Power efficiency> 90%
  • Modular cablingYes
  • SLI supportReady
  • CrossFire supportReady
  • Fan configuration120 mm FDB Fan (Fluid Dynamic Bearing)

Certification Series Gold GP Series

Wattage 850W

Color Black

  • ATX 3.1 and PCIe 5.1 ready with a 12V-2x6 connector for next-generation GPUs
  • Cybenetics Gold certified efficiency above 90% at typical load reduces heat and power draw
  • Full Bridge LLC plus DC-DC topology delivers stable voltage regulation under heavy workloads
  • Fully modular cable design lets you install only the cables needed for cleaner airflow
  • 120 mm fluid dynamic bearing fan runs quietly while maintaining cooling performance

850 W ATX 3.1 fully modular PSU

The SAMA GP850-Black is an 850 W ATX 3.1 power supply built for gaming PCs that demand stable delivery to modern graphics cards. Its fully modular design lets builders connect only the cables required for their specific hardware configuration.

Cybenetics Gold efficiency with 120 mm FDB fan

Cybenetics Gold certification confirms over 90 percent efficiency at typical load, reducing waste heat inside the case. A 120 mm fluid dynamic bearing fan provides quiet cooling while the single +12 V rail simplifies power distribution across all components.

PCIe 5.1 ready 12V-2x6 connector for 450 W GPU power

The native 12V-2x6 (12+4) connector supplies up to 450 W directly to compatible next-generation graphics cards without adapters. This single specification determines whether the unit matches the power requirements of the target GPU.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $51.99
Cheaper than about 90% of the 10,869 comparable items (median $142.99).
Max wattage 850 W
Typical for this category: the median of 930 items is 850 W.

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameSAMA
Product lineGP Series
Model nameGP850-Black
Part numberG0850-BKGFFGP1-US
Product typeATX 12 V
Product colorBlack
Performance
Frequency50-60 Hz
Graphics
SLI supportReady
CrossFire supportReady
Ports & slots
SATA power connectors6
Connection types2 × 8 pin (4+4) EPS (CPU)
Power
Max wattage850 W
Power efficiency> 90%
Modular cablingYes
Power factor correctionActive
Main power connector20+4 Pin
12V railsSingle
Power hold-up time> 12 ms @ 100% load
Efficiency certification80 PLUS GOLD Certified
Overvoltage protectionYes
Overload protectionYes
Supply voltage100–240 V
AC input frequency50-60 Hz
Rated input current10-6A
Built-in protectionOTP / OCP / OPP / SCP / OVP / UVP / SIP / NLO
Rated power850 W
Peak wattage850 W
+3.3V max. current20A
+5V max. current20A
+12V1 max. current70.8A
-12V max. current0.4A
+5VSB max. current3A
Under voltage protectionYes
Over current protectionYes
Over power protectionYes
Size & build
Product dimensions140 × 150 × 86 mm
Product weight1.6kg
Compatibility
Haswell compatibilityYes
PSU length limit140 mm
In the box
Included itemsGP850+Cable +accessory+Quick Start Guide
Fans total quantity1
Environment & compliance
Over temperature protectionYes
More details
Fan configuration120 mm FDB Fan (Fluid Dynamic Bearing)
Mean time between failures100,000 h
Over load protectionYes
Short circuit protectionYes

Other versions of this model

5 more in the same range

Questions about this item

Will the 12V-2x6 connector support a next-generation GPU drawing up to 450 W?

Yes, the native 12V-2x6 (12+4) connector is rated for 450 W and complies with ATX 3.1 and PCIe 5.1 specifications.

Is the unit fully modular so I can remove unused cables for better airflow?

Yes, every cable detaches from the PSU; the bundle includes a 24-pin motherboard cable, two 4+4-pin CPU cables, two 6+2-pin PCIe cables, one 12V-2x6 cable and SATA/Molex cables.

What protections are built in to safeguard components during a fault?

The PSU includes OTP, OCP, OPP, SCP, OVP, UVP, SIP and NLO protection circuits.

More in ATX Desktop Power Supplies

Similar items