Overview

  • 120mm Fluid bearing fan
    Featuring a 120mm fluid bearing fan to guarantee superior cooling performance.
  • Ultra quiet smart zero fan
    With the Smart Zero Fan Function, the fan will not spin until the load exceeds 20% of the power supply, minimizing undesired noise.
  • Flat cable design
    Low-profile flat black cable makes cable management easier, reduces clutter and increases airflow inside the chassis.
  • Fully compatible with Intel ATX 3.0 specifications
    Fully compatible with Intel ATX 3.0 Specifications which supports up to 200% power excursion, reaches 60% low load efficiency and complies with required power supply timing standards.
  • PCIe Gen 5.0 Ready
    Included 16-pin connector to offer powerful and stable performance allowing the PSU to natively run next-generation GPUs.

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Specifications

Capacity & configuration

Cooling Fan Type
120mm Fluid Dynamic Bearing Fan
Lighting Type
None

Dimensions & weight

Product Name
Smart BM3 80+ Bronze PCIE Gen 5 ATX 3.0 850W Semi-Modular Power Supply
Product Height
86 millimeters
Product Width
150 millimeters
Product Length
140 millimeters
Product Weight
61 ounces

Features

Brand
Thermaltake
Color
Black
Modular
Semi-modular
Energy Efficiency
80 PLUS Bronze
ATX Connector
ATX 12V 4+4Pin (650mm+150mm) x 2
PCIe Connector
1 x PCI-E 12+4Pin connectors (600mm) x 1. 4 x PCI-E 6+2Pin connectors (500mm + 150mm) x 2
Peripheral Connector
7 x Peripheral connectors (500mm + 150mm + 150mm + 150mm) x 1, (500mm + 150mm + 150mm) x 1
SATA Connector
6 x SATA connectors (500mm + 150mm + 150mm) x 2
EPS12V Connector
ATX 12V 4+4Pin (650mm+150mm) x 2
PCI Express Version
PCI Express 5.0
Form Factor
ATX
Cord Length
2.13 feet
UPC
841163089910, 841163089804

Power & warranty

Wattage
850 watts, 750 watts, 650 watts
Model Number
PS-SPD-0850MNFABU-3
Power Cord Included
Yes
Warranty - Parts
5 years
Warranty - Labor
5 Years

Warranty & protection

Included manufacturer warranty

See manufacturer documentation.

Register your product with the manufacturer within 30 days of delivery.

Warranty service

Manufacturer warranty claims are handled by the manufacturer. We are happy to help you find the right contact: (888) 419-6820.

Customer reviews

Write a review
KAYAssaOct 25, 2026 · Verified purchase ★★★★★

Thermaltake-smart BM3 80+ Bronze PCIE Gen 5 - This power supply is the best one I ever bu in 4year. I been building a lot of gaming pc and I finally find this one. It deserves 5 stars

KylerrNOct 22, 2026 · Verified purchase ★★★★★

No issues with this power supply, it doesn’t run up my consumer bills.

HectorOct 21, 2026 · Verified purchase ★★★★★

Amazing - Recently my power supply for my PC broke down. I have been using this one ever since and it has been amazing!

YANDIRAZOct 9, 2026 · Verified purchase ★★★★★

Power supply for my pc - Good product, it fits the pc perfectly and works fine

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Questions & answers

Ask a question

Email [email protected] or call (888) 419-6820 during business hours.

Free U.S. shippingOn every order. Leaves our store in 1–2 business days, arrives in 3–5 business days.
Free returns for 30 daysNo restocking fee. We email you a prepaid return label.
We can install it tooOptional in-home delivery, installation and haul-away on large appliances.
Talk to our team(888) 419-6820 · Mon–Sat