Skip to main content
SAMA GT650 650W Gold ATX 3.1 PCIe 5.1 Fully Modular Power Supply, White | 80 PLUS Gold Certified,Japanese Capacitors,PCIe 5.1 (450W),12V-2x6,120mm ECO Silent Fan,RTX 40 series ready,650W Gaming PSU
SAMA

SAMA GT650 650W Gold ATX 3.1 PCIe 5.1 Fully Modular Power Supply

Bottom line: The SAMA GT650 650W Gold ATX 3.1 PCIe 5.1 Fully Modular Power Supply: Native 12V-2x6 connector rated for 450W over PCIe 5.1, no adapter needed for RTX 40 cards; main trade-off: 650W leaves little headroom for RTX 4080/4090-class GPUs paired with high-TDP CPUs.

Check price on Amazon

As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →

Check price on Amazon → Compare to similar power supplies

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides.

Pros & Cons

Pros

  • ✓ Native 12V-2x6 connector rated for 450W over PCIe 5.1, no adapter needed for RTX 40 cards
  • ✓ ATX 3.1 and PCIe 5.1 compliance for current-generation GPU builds
  • ✓ 80 PLUS Gold certified for lower energy loss under everyday gaming loads
  • ✓ Japanese capacitors aimed at stable voltage output and long service life
  • ✓ Fully modular embossed cables plus 120mm FDB fan with ECO silent mode

Cons

  • ✗ 650W leaves little headroom for RTX 4080/4090-class GPUs paired with high-TDP CPUs
  • ✗ Warranty length not stated in the listing; confirm terms before buying
  • ✗ 120mm fan is smaller than the 135-140mm fans used in many quiet PSUs
  • ✗ No ripple, hold-up time, or efficiency-curve figures in the product details

Related Products

Other products in this category you may like:

SpecPicks Verdict

SpecPicks scored SAMA GT650 650W Gold ATX 3.1 PCIe 5.1 Fully Modular Power Supply using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies category. SAMA's power supplies lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for power supplies of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • 650W Gold Efficiency Performance ensures efficient and stable power delivery for everyday gaming and computing systems with reduced energy loss.
  • ATX 3.1 and PCIe 5.1 ready with native 12V-2x6 connector supports modern GPUs and reliable system performance.
  • Japanese capacitors with advanced power architecture deliver stable voltage output and long-term durability.
  • ECO silent mode with 120mm FDB fan enables quiet operation while maintaining effective cooling performance.
  • Fully modular PSU design with embossed cables improves airflow and simplifies cable management for clean builds.

Full Specifications

BrandSAMA
Wattage650 watts
Model NameGT0650-WHGFF001-US
Form FactorATX
Model NumberHAT-650yzB1
Connector TypeATX, PCIe
Cooling MethodAir
Number of Fans1
Output Wattage650 watts
Item Dimensions5.5 x 5.9 x 3.3 inches
Mfr Part NumberGT0650-WHGFF001-US
Compatible DevicesHigh-end Graphics Cards, Modern Motherboards
Connector Quantity14
Power Supply DesignFull Modular
Warranty Description5 years Warranty
Maximum Input Voltage240 volts
Minimum Input Voltage100 volts
Item dimensions L x W x H5.5 x 5.9 x 3.3 inches
System Bus Connector Type20+4 Pin
Connector Type Used on CableATX, PCIe
Full listing titleSAMA GT650 650W Gold ATX 3.1 PCIe 5.1 Fully Modular Power Supply, White | 80 PLUS Gold Certified,Japanese Capacitors,PCIe 5.1 (450W),12V-2x6,120mm ECO Silent Fan,RTX 40 series ready,650W Gaming PSU

Ready to buy?

SAMA GT650 650W Gold ATX 3.1 PCIe 5.1 Fully Modular Power Supply, White | 80 PLUS Gold Certified,Japanese Capacitors,PCIe 5.1 (450W),12V-2x6,120mm ECO Silent Fan,RTX 40 series ready,650W Gaming PSU is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Check price on Amazon →

Related Power Supplies

Keep exploring SpecPicks

Other buying guides

Browse the catalog

Editorial

More guides & deep dives from the SpecPicks archive

Browse all articles & guides →

More reviews from the SpecPicks archive

Browse all reviews →

Earliest SpecPicks reviews

Browse full archive →
SAMA GT650 650W Gold ATX 3.1 PCIe 5.1 Fully Modular Power Supply, White | 80 PLUS Gold Certified,Japanese Capacitors,PCIe 5.1 (450W),12V-2x6,120mm ECO Silent Fan,RTX 40 series ready,650W Gaming PSU
View on Amazon →