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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

  • Max wattage2050 W
  • Power efficiency89% ~ 91% overall efficiency
  • Modular cablingFull Modular
  • Fan configuration135 mm dual-ball bearing fan
  • Power factor correctionActive PFC(PF>0.95 at full load)
  • Main power 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.

How it compares

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

Price $551.99
Pricier than about 90% of the 10,869 comparable items (median $142.99).
Max wattage 2050 W
Higher than about 95% of the 930 comparable items (median 850 W).

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Specifications

Product
Brand nameSilverStone
Model nameHA2050R-PM
Product colorBlack
Product typeATX 3.0 Compatible
Ports & slots
Output type25A@+3.3 V, 22A@+5 V, 170A@+12 V, 3.0A@+5VSB, 0.3A@-12 V
Connection types1 × 24 / 20-Pin motherboard connector
2 × 8 / 4-Pin EPS / ATX 12 V connector
14 × 8 / 6-Pin PCIe connectors
3 × 12+4-Pin 12VHPWR connector
12 x SATA connector
3 × 4-Pin Peripheral connector
1 × 4-Pin Floppy adapter connector
Power
Max wattage2050 W
Power efficiency89% ~ 91% overall efficiency
Modular cablingFull Modular
Power factor correctionActive PFC(PF>0.95 at full load)
Main power connector20+4Pin
12V railsSingle
Efficiency certification80 PLUS PLATINUM Certified
Built-in protectionOver Current Protection
Over Power Protection
Over Voltage Protection
Short Circuit Protection
Over Temperature Protection
Supply voltage200–240 V
AC input frequency47–63 Hz
Size & build
Product dimensions150 × 86 × 180 mm
Product weight4.34 kg.
Compatibility
PSU length limit180 mm
Environment & compliance
PSU noise rating0 dBA minimum
More details
Fan configuration135 mm dual-ball bearing fan
Mean time between failures100,000 h

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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