here!
I’m your shopping assistant for PC builds, upgrades, and everything tech.
Got questions? Ask away!
Start a conversation
- $69.90
- Free 90-day Returns
$59.90
Add to PC build list
Login to Make an Offer
Sold by Newegg
Shipped by Newegg
BETA 2 850W Power Supply, ATX 3.1 & PCIe 5.1 Ready, 80+ Bronze Certified, Next-Gen 12V-2x6 Cable, DC-to-DC Stability, Industrial Japanese Main Capacitor, Full Protection Suite (BETA2850W)
- [FUTURE-PROOF ATX 3.1 & PCIE 5.1] Compliant with ATX 3.1 for modern GPU power spikes. The 850W model is PCIe 5.1 Ready with a native 12V-2x6 connector for NVIDIA RTX 50/40 series cards - no adapters required.
- [STABLE DC-TO-DC TECHNOLOGY] Features advanced DC-to-DC topology for tighter voltage regulation and rock-solid stability. Minimizes cross-load interference to provide clean, consistent power to your CPU and motherboard.
- [JAPANESE MAIN CAPACITOR] Built for longevity with a premium Japanese main capacitor. This high-grade component offers superior heat resistance and ripple suppression, ensuring stable performance under heavy gaming loads.
- [80 PLUS BRONZE EFFICIENCY] Certified for 85% efficiency at typical loads. High-efficiency power conversion reduces heat waste and lowers energy costs, while the silent fan keeps your build cool and quiet.
- [6-POINT SAFETY & 5-YEAR WARRANTY] Complete industrial protection with OCP, OVP, UVP, OPP, SCP, and OTP. Backed by a 5-year warranty with flexible, easy-route cables for a clean, professional-looking PC build.
+
+
Overview
Specs
Reviews (4)
See all Q & A 
Any questions? Ask CelesteSM will help you find out quickly.
Try me now
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Limited Warranty period (parts): 5 years
- Limited Warranty period (labor): 5 years
- Read full details
Return Policies
- Return for refund until: January 31, 2027
- Return for replacement until: January 31, 2027
- This item is covered by Newegg.com's Extended Holiday Return Policy.
- Read full return policy for details.
We want to ensure your holiday shopping this year is hassle-free. That’s why we’re automatically extending our return policies on almost every product! For purchases placed between November 1st, 2026 and December 31, 2026 you will have until January 31, 2027 to return your product.
Manufacturer Contact Info
LOADING...
LOADING...
The Montech BETA 2 850W is an ATX 3.1, 80 PLUS Bronze power supply with a native 12V-2x6 cable, suited to gaming PCs and upgrades using compatible modern graphics cards that need up to 850W.
Recommended For
- Budget-conscious gaming PC builders using an 850W-class system with a compatible modern NVIDIA GPU can use the native 12V-2x6 cable without a separate adapter.
- Builders refreshing an ATX gaming PC who want ATX 3.1 support and a native next-generation GPU power connector while keeping to a Bronze-tier PSU budget.
- PC builders who prefer a straightforward, fixed-cable installation and value the listed five-year warranty and standard protection features over modular cabling.
Real-World Use Scenarios
- When building a PC around a compatible NVIDIA RTX 40- or RTX 50-series graphics card, users can connect the GPU with the included native 12V-2x6 cable instead of relying on a separate adapter; confirm the graphics card’s power requirements before choosing the PSU.
- For gaming builds that place sustained demand on both the CPU and GPU, the BETA 2 850W has been used in demanding test systems with RTX 4080- and RTX 5080-class cards; check total system power needs, especially if using a higher-draw GPU or overclocking.
- When upgrading a PC that still uses a graphics card with conventional PCIe power plugs, builders can use the BETA 2’s 6+2-pin PCIe connectors; the native 12V-2x6 connection also supports a later compatible GPU upgrade.
- For a cost-conscious gaming PC build, this Bronze-rated PSU provides modern GPU connections and an 850W capacity without requiring a move to a higher-efficiency tier; builders can reserve more of their budget for the graphics card or processor.
- When installing in a mid-tower or compatible compact mATX case, the 140 mm PSU depth and flexible embossed cables can make fitting and routing easier; because the cables are fixed, plan where the unused leads will go before closing the case.
Spec Summary
| Attribute | Value |
|---|---|
| Best For | ATX desktop PC builds requiring up to 850 W |
| Power Output | 850 W maximum output |
| Efficiency | 80 PLUS Bronze certified |
| Cooling | Air-cooled with one 120 mm fan |
| Connectors | 20+4-pin motherboard ×1, 4+4-pin CPU ×2, 6+2-pin PCIe ×2, SATA ×4, and 4-pin Molex ×4 |
| Modularity | Full modular cable format |
| Protection | OPP, OVP, UVP, OCP, OTP, and SCP |
| Input Power | Maximum input voltage: 240 V AC |
| Dimensions | 140 × 150 × 86 mm |
| Color | Bronze |
| Model And Brand | Montech BETA 2 850W; model number BETA2850W; part number BETA 2 850W |