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Black rectangular ATX power supply with 120 mm fan and modular cable sockets

Silverstone

Silverstone DA850R-GMA 850 W power supply, ATX 3.0, full modular, 80 PLUS Gold

SKU CH-YA70-TAM4A MPN DA850R-GMA

An 850 W ATX 3.0 unit with full modular cables, 80 PLUS Gold efficiency and a 120 mm fan in a 140 mm deep chassis

  • ColorBlack
  • TypeATX 3.0 Compatible
  • Maximum Power850 W
  • Fans1 x 120 mm
  • PFCActive PFC (PF>0.9 at full load)
  • Main Connector20+4Pin
  • ATX 3.0 ready for modern GPU power delivery
  • 80 PLUS Gold efficiency cuts waste heat at typical loads
  • Full modular cabling keeps the build tidy and airflow clear
  • Single +12 V rail delivers 70.8 A for high-end graphics cards
  • 100 000 hour MTBF signals long-term reliability

ATX 3.0 Compatible 850 W Unit

The SilverStone DA850R-GMA delivers 850 W through a single +12 V rail rated at 70.8 A. Full modular cabling lets builders connect only the leads they need. The 140 mm depth fits many compact cases while the 120 mm fan handles airflow. It targets system integrators who want ATX 3.0 readiness without excess bulk.

Sustained Load Behaviour

Active PFC maintains a power factor above .9 at full load across the 99 - 264 V input range. The 80 PLUS Gold rating confirms high efficiency during continuous operation, reducing waste heat. A 100000 hour MTBF figure reflects component longevity under constant demand. Protection circuits guard against over current, over voltage, short circuit, over temperature and under voltage events.

12V-2x6 Connector Decides Fit

One native 12V-2x6 cable is included alongside four 8 / 6-pin PCIe leads on two cables. This combination supports modern graphics cards that require the new connector while retaining compatibility with traditional 6+2 pin devices. Two 4+4 pin CPU cables and eight SATA connectors cover mainstream storage and processor needs.

Puntos fuertes

  • ATX 3.0 ready for modern GPU power delivery
  • 80 PLUS Gold efficiency cuts waste heat at typical loads
  • Full modular cabling keeps the build tidy and airflow clear
  • Single +12 V rail delivers 70.8 A for high-end graphics cards
  • 100 000 hour MTBF signals long-term reliability

Especificaciones

BrandSilverStone
ModelDA850R-GMA
ColorBlack
TypeATX 3.0 Compatible
Maximum Power850 W
Fans1 x 120 mm
PFCActive PFC (PF>0.9 at full load)
Main Connector20+4Pin
+12V RailsSingle
Max PSU Length140 mm
ModularFull Modular
Energy-Efficient80 PLUS GOLD Certified
ProtectionOver Current Protection
Over Power Protection
Over Voltage Protection
Short Circuit Protection
Over Temperature Protection
Under Voltage Protection
Input Voltage99 - 264 V
Input Frequency Range47 - 63 Hz
Output20A@+3.3V, 20A@+5V, 70.8A@+12V, 3A@+5VSB, 0.3A@-12V
MTBF100,000 hours
Connectors1 x 24 / 20-Pin motherboard connector
2 x 8 / 4-Pin EPS / ATX 12V connector
4 x 8 / 6-Pin PCIe connectors
1 x 12V-2x6 connector
8 x SATA connectors
4 x 4-Pin Peripheral connector
Cable Spec1 x 24pin Motherboard cable
2 x 4+4pin CPU cable
1 x 12V-2x6 cable
2 x 6+2pin PCIe cable (2 connectors per cable)
1 x 4pin Peripheral cable (4 connectors per cable)
2 x SATA cable (4 connectors per cable)
Dimensions150 x 86 x 140 mm
Weight4..7 lbs.
Peso de envío2.72 kg
Dimensiones del paquete279 × 203 × 127 mm

Preguntas sobre este artículo

How loud does the 120 mm fan run when the DA850R-GMA delivers its full 850 W output all day?

The single 120 mm fan is designed to maintain safe temperatures under continuous 850 W load; acoustic performance scales with load and case airflow.

Which cables must I already have to connect the 12V-2x6 and 8-pin PCIe connectors on this unit?

The box includes one 12V-2x6 cable and two 6+2-pin PCIe cables, each carrying two connectors, so no extra cables are required for those interfaces.

Will the 140 mm depth and 20+4-pin main connector fit my older ATX chassis and motherboard?

At 140 mm deep it matches the classic ATX form factor, and the 20+4-pin cable works with both 20-pin and 24-pin motherboard headers.

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