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header-product Power supply unit LC-Power LC6850B-SI V3.1 850 W, 20+4 pin ATX, 80 PLUS Bronze
56.99 €

Power supply unit LC-Power LC6850B-SI V3.1 850 W, 20+4 pin ATX, 80 PLUS Bronze

LC-Power LC6850B-SI V3.1 PSU 850 W Photo 1
LC-Power LC6850B-SI V3.1 PSU 850 W Photo 2
LC-Power LC6850B-SI V3.1 PSU 850 W Photo 3
LC-Power LC6850B-SI V3.1 PSU 850 W Photo 4
LC-Power LC6850B-SI V3.1 PSU 850 W Photo 1
LC-Power LC6850B-SI V3.1 PSU 850 W Photo 2
LC-Power LC6850B-SI V3.1 PSU 850 W Photo 3
LC-Power LC6850B-SI V3.1 PSU 850 W Photo 4
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The discount is valid from 23.10.2026 to 20.11.2026

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Power supply unit LC-Power LC6850B-SI V3.1 850 W, 20+4 pin ATX, 80 PLUS Bronze

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Power supply unit LC-Power LC6850B-SI V3.1 850 W, 20+4 pin ATX, 80 PLUS Bronze

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Price without discount: 72.99 €
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Short description

The LC-Power LC6850B-SI V3.1 is an ATX power supply unit delivering 850 W total power with a 20+4 pin ATX motherboard connector and 80 PLUS Bronze efficiency. It supports AC input 100–240 V, has compact dimensions (150×150×86 mm) and weighs 1.88 kg. Suited for desktop PC builds requiring reliable mid-range power and energy efficiency.
Available at price 56.99 €: 2 pcs.
Total available for order: 6 pcs.
Warranty: 2 Years
SKU: 11251306
Manufacturer: LC-Power
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Pick-up points

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Cost

1.99 €

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
16.11.2026 {{selectedOffer.officeDeliveryString}}
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From 4.99 € (Weight: 2.12 kg)
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Product information

Description

The LC-Power LC6850B-SI V3.1 is an ATX power supply unit rated for 850 W total output. It provides a 20+4 pin ATX motherboard connector and meets 80 PLUS Bronze efficiency standards for reliable operation across a wide AC input range of 100–240 V. With compact dimensions of 150×150×86 mm and a weight of 1.88 kg, this PSU is designed for use in desktop PC builds that require stable mid-range power delivery and improved energy efficiency.

Advantages

The unit delivers a continuous 850 W output suitable for mainstream systems and supports universal mains voltages, which simplifies deployment in different regions. 80 PLUS Bronze certification ensures a balance between efficiency and cost, reducing wasted energy and heat compared with non-certified supplies. Its compact footprint helps compatibility with many ATX-compatible cases while keeping installation straightforward through a standard 20+4 pin connector.

Suitable for

  • Mid-range desktop PCs with single GPU configurations
  • Office and home systems requiring stable mains compatibility (100–240 V)
  • System builders looking for cost-effective, energy-efficient PSUs
  • Upgrades where an 850 W output and standard ATX connector are required

Key specifications

  • Total power: 850 W
  • Motherboard power connector: 20+4 pin ATX
  • Efficiency certification: 80 PLUS Bronze
  • AC input range: 100–240 V
  • Dimensions (W×D×H): 150 × 150 × 86 mm
  • Weight: 1.88 kg

How to use

Install the PSU into a compatible ATX case following standard safety precautions: disconnect mains power before installation, secure the unit to the case with the supplied screws, and connect the 20+4 pin ATX connector to the motherboard. Connect other required peripheral and GPU power cables as appropriate for your system. After all connections are made, verify wiring and ensure proper airflow around the unit before powering the system on.

Usage recommendations

For reliable performance, use this 850 W PSU in systems whose combined component power draw stays below the unit's continuous rating, and allow for headroom to accommodate peak loads. Ensure the case provides adequate ventilation and keep dust away from vents and fan areas. If using high-end multi-GPU setups or heavily overclocked CPUs, consider a higher-wattage or higher-efficiency model.

Specifications

80 PLUS certification:
80 PLUS Bronze
Power supply unit (PSU) form factor:
ATX
Purpose: What the product is used for.
PC
Motherboard power connector: The way in which the motherboard is connected to the power supply.
20+4 pin ATX
AC input voltage: The voltage of the AC electricity that is inputted into the product.
100 - 240
Total power: The total power that is needed by the device, or the total power produced by the device.
850 W
All features

Packaging data

Package type: The type of product package e.g. box.
Box
Package weight: Weight of the packaged product.
2120 g
Package height: The distance from the top to the bottom of the packaging.
113 mm
Package depth: The distance from the front to the back of the packaging.
245 mm
Package width: The distance from one side of the packaging to the other.
200 mm

Weight & dimensions

Weight: Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.
1.88 kg
Height: The measurement of the product from head to foot or from base to top.
86 mm
Depth: The distance from the front to the back of something.
150 mm
Width: The measurement or extent of something from side to side.
150 mm

Performance

80 PLUS certification:
80 PLUS Bronze
Power supply unit (PSU) form factor:
ATX
Purpose: What the product is used for.
PC

Ports & interfaces

Motherboard power connector: The way in which the motherboard is connected to the power supply.
20+4 pin ATX

Power

AC input voltage: The voltage of the AC electricity that is inputted into the product.
100 - 240
Total power: The total power that is needed by the device, or the total power produced by the device.
850 W

Description

Machine translation.

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Product comparison

The Power supply unit LC-Power LC6850B-SI V3.1 850 W is compared with several alternative power supplies from the same brand featuring different power outputs and form factors. All evaluated products share a 20+4 pin ATX motherboard connector and target desktop computer builds, but differ primarily in total power delivery, input voltage range, and physical form factor, which dictates their suitability for various system tiers.

⚙️ The table below compares key specifications including total power output, 80 PLUS certification, power supply form factor, AC input voltage, and intended purpose.

ParameterLC-Power LC6850B-SI V3.1 850 WLC-Power LC6550B-SI V3.1 550 WLC-Power LC500-12 V2.31 350 WLC-Power LC700SI V2.31 700 WLC-Power LC500SI V2.31 500 WLC-Power LC600-12 V2.31 400 WPractical significance
Total power850 W550 W350 W700 W500 W400 WThe higher wattage of the LC-Power LC6850B-SI V3.1 850 W makes it capable of powering demanding hardware configurations.
Form factorATXATXATXTFXTFXATXStandard ATX fits most mid-tower cases, whereas TFX units are built for specialized compact computer cases.
80 PLUS certification80 PLUS Bronze80 PLUS Bronze80 PLUS Bronze80 PLUS80 PLUS80 PLUS BronzeMost models feature Bronze certification, ensuring standard baseline energy efficiency during operation.
AC input voltage100 - 240 V100 - 240 V230 V180 - 240 V180 - 240 V230 VThe wider input voltage range on the main model provides better adaptability to unstable electrical grids.

◎ The suitability table below evaluates which user needs and use cases are best addressed by each specific product in the comparison.

Use caseRecommended productWhy
High-end gaming or performance workstation PCPower supply unit LC-Power LC6850B-SI V3.1 850 WOffers the highest wattage and wide input voltage support needed for power-hungry components.
Standard home or office desktop PCLC-Power LC6550B-SI V3.1 550 W or LC-Power LC500SI V2.31 500 WProvides adequate and reliable power for everyday mainstream computer setups.
Compact desktop build in a restricted spaceLC-Power LC700SI V2.31 700 W or LC-Power LC500SI V2.31 500 WUtilizes a specialized TFX form factor designed specifically for compact system cases.
Basic office systems with minimal power demandsLC-Power LC500-12 V2.31 350 W or LC-Power LC600-12 V2.31 400 WDelivers sufficient lower-tier power output for standard configurations without dedicated high-power graphics cards.

The Power supply unit LC-Power LC6850B-SI V3.1 850 W stands out for its high power capacity and broad input voltage range, making it the ideal choice for demanding desktop builds. It is best suited for users who require ample headroom for high-performance components, whereas the alternative models serve specific needs ranging from compact TFX form factors to lower-wattage builds.

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Stock data
Warehouse Stock Delivery to the store Store Price
WH334 2 16.11.2026 Best delivery
Discount 21%
56.99 €
WH354 2 16.11.2026 Best delivery
81.49 €
Available only for legal entities
Warehouse Stock Delivery to the store Store Price
WH109 2 01.12.2026
69.99 €
Discount 21%
56.99 €
Stock: 2
Delivery Date: 16.11.2026 Best delivery
Warehouse: WH334
81.49 €
Stock: 2
Delivery Date: 16.11.2026 Best delivery
Warehouse: WH354
Available only for legal entities
69.99 €
Stock: 2
Delivery Date: 01.12.2026
Warehouse: WH109

Customer reviews

Customer questions

FAQ

How much does the LC-Power LC6850B-SI V3.1 PSU 850 W cost, and is it available for purchase?

The price is 56.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 6 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 16.11.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

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qalxurnevizo.shop offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

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Yes. qalxurnevizo.shop works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All LC-Power products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized LC-Power service centers and through qalxurnevizo.shop

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the qalxurnevizo.shop (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: 80 plus certification, power supply unit (psu) form factor, purpose, motherboard power connector, ac input voltage, total power, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.
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