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Black rectangular ATX power supply unit with modular cable ports and a 135mm fan grille

Silverstone

Silverstone HA2050R-PM 2050W ATX 3.0 power supply

SKU CH-JW63-9VAYH MPN HA2050R-PM

Delivers 2050 W through a fully modular ATX 3.0 design with 80 PLUS Platinum efficiency and three 12VHPWR connectors

  • ColorBlack
  • TypeATX 3.0 Compatible
  • Maximum Power2050 W
  • Fans135mm dual-ball bearing fan
  • PFCActive PFC(PF>0.95 at full load)
  • Main Connector20+4Pin
  • ATX 3.0 compatible design supports modern GPU power demands
  • 80 PLUS Platinum certified efficiency reduces wasted heat and lowers running costs
  • Fully modular cabling with flat wires simplifies routing and improves airflow
  • 135 mm dual-ball bearing fan enables quiet operation at idle and strong cooling under load
  • 100,000-hour MTBF backed by all-Japanese electrolytic capacitors for long-term reliability

High-Wattage ATX 3.0 Supply

The Silverstone HA2050R-PM delivers 2050 W through a single +12 V rail rated at 170 A. It meets ATX 3.0 and PCIe 5.0 requirements and carries 80 PLUS Platinum certification for 89 % to 91 % typical efficiency. A 135 mm dual-ball bearing fan is controlled by an MCU for quiet idle operation and full cooling under load.

Multi-GPU And Workstation Builds

The unit suits systems that need three 12VHPWR connectors and up to fourteen 8-pin PCIe plugs for multiple high-end graphics cards. It also provides two EPS connectors and twelve SATA connectors for dense storage arrays. Builds running on 200 V to 240 V mains only should look elsewhere, as the input range starts at 200 V.

180 mm Chassis Depth

The power supply is 180 mm long, so the case must accept at least that depth for a proper fit. This single dimension decides whether the HA2050R-PM can be installed in a given enclosure.

Highlights

  • ATX 3.0 compatible design supports modern GPU power demands
  • 80 PLUS Platinum certified efficiency reduces wasted heat and lowers running costs
  • Fully modular cabling with flat wires simplifies routing and improves airflow
  • 135 mm dual-ball bearing fan enables quiet operation at idle and strong cooling under load
  • 100,000-hour MTBF backed by all-Japanese electrolytic capacitors for long-term reliability

Specifications

BrandSilverStone
ModelHA2050R-PM
ColorBlack
TypeATX 3.0 Compatible
Maximum Power2050 W
Fans135mm dual-ball bearing fan
PFCActive PFC(PF>0.95 at full load)
Main Connector20+4Pin
+12V RailsSingle
Max PSU Length180 mm
ModularFull Modular
Efficiency89% ~ 91% overall efficiency
Energy-Efficient80 PLUS PLATINUM Certified
PSU Noise Level0 dBA minimum
ProtectionOver Current Protection
Over Power Protection
Over Voltage Protection
Short Circuit Protection
Over Temperature Protection
Input Voltage200 - 240 V
Input Frequency Range47 - 63 Hz
Output25A@+3.3V, 22A@+5V, 170A@+12V, 3.0A@+5VSB, 0.3A@-12V
MTBF100,000 hours
Connectors1 x 24 / 20-Pin motherboard connector
2 x 8 / 4-Pin EPS / ATX 12V connector
14 x 8 / 6-Pin PCIe connectors
3 x 12+4-Pin 12VHPWR connector
12 x SATA connector
3 x 4-Pin Peripheral connector
1 x 4-Pin Floppy adapter connector
Cable Spec1 x MB 24/20pin cable
2 x CPU 4+4pin cable
4 x PCI-E 6+2pin cable
7 x PCI-E 6+2pin cable (2 connector per cable)
1 x Cable (3 x Peripheral 4pin connector + 1 x 4pin Floppy connector per cable)
3 x SATA Cable (4 connector per cable)
1 x 12VHPWR cable
2 x 12VHPWR cable
Dimensions150 x 86 x 180 mm
Weight4.34 kg.

Questions about this item

How do I decide between the available configurations for this 2050 W unit?

The HA2050R-PM is sold as a single 2050 W model with full modular cabling; choose it when your build needs up to 170 A on the +12 V rail and multiple 12VHPWR connectors for high-end GPUs.

What does the 2050 W rating mean once the PSU is installed in a system?

It can deliver a combined 2050 W across all rails, with 170 A available on the single +12 V rail, 25 A on +3.3 V, 22 A on +5 V, 3.0 A on +5 VSB and 0.3 A on -12 V.

Which ATX standard does the 12VHPWR connector follow and what power limit does it support?

The three 12+4-pin 12VHPWR connectors comply with the ATX 3.0 and PCIe 5.0 specifications, each rated for the higher power delivery those standards define.

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