# Power Supply lian li SX Series 850W 80 PLUS Platinum PCIe 5.1 ATX 3.1 Fully Modular

**URL:** https://aio.lv/en/product--lian-li-g9psx0850pw000eu--11670117
**Data updated:** 2026-02-16 07:06 (EET)
**Category:** Power Supplies (PSU)
**Manufacturer:** lian li
**Manufacturer code:** G9P.SX0850P.W000.EU
**EAN:** 4718466020987
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 136.99 €
**Prices and availability valid until:** 2026-08-10 23:59
**Price without VAT (21%):** 113.21 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--lian-li-g9psx0850pw000eu--11670117

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 10.08.2026 | free |
| Pickup points | 13.08.2026 | 1.89 EUR |
| Courier delivery to door | 13.08.2026 | 4.99 EUR |

## Summary description

The lian li SX Series 850W 80 PLUS Platinum is a fully modular power supply designed for ATX 3.1 systems and supporting PCIe 5.1 devices. With 850 watts of continuous power and high-efficiency Platinum certification, it suits high-performance desktops and gaming rigs. Fully modular cabling simplifies installation, improves airflow, and aids cable management for clean builds.

## Long description

The lian li SX Series 850W 80 PLUS Platinum is a fully modular ATX 3.1 power supply engineered to deliver stable continuous power for high-performance desktops and gaming systems. Designed with support for PCIe 5.1 devices, this 850W unit combines high conversion efficiency with a compact, build-friendly layout. Fully modular cabling and modern connectors simplify installation, improve airflow, and help maintain tidy cable management in small and full-sized chassis.
Advantages
High 80 PLUS Platinum efficiency reduces heat and power draw while ensuring reliable delivery of continuous 850W output for demanding components. The ATX 3.1 compliance and PCIe 5.1 compatibility provide future-ready connector support for the latest graphics cards and peripherals. Fully modular design lets builders attach only the cables they need, improving airflow and simplifying upgrades or maintenance. The unit is intended to deliver consistent voltage regulation and protection features suitable for gaming, content creation, and workstation builds.
Suitable for
 High-performance gaming PCs with modern GPUs supporting PCIe 5.1
 Compact and mid-tower builds requiring ATX 3.1 features and efficient cooling
 Content creation systems with multi-drive and high-core-count CPU configurations
 System upgrades where modular cabling and future connector compatibility are needed
Key specifications
 Continuous power: 850 watts
 Efficiency rating: 80 PLUS Platinum
 Form factor and standard: ATX 3.1 compliant
 GPU interface support: PCIe 5.1 compatible connectors
 Cabling: fully modular cables to optimize build layout and airflow
 Cooling: integrated fan with thermal control for quiet operation under varying loads
 Protection features: over-voltage, under-voltage, over-current, short-circuit protections (built-in)
How to use
Install the power supply into an ATX-compatible chassis using the standard mounting points, orienting the unit to match the case airflow. Connect the 24-pin motherboard cable, CPU EPS connector(s), and the required PCIe connectors for the graphics card(s). Attach storage and peripheral power cables as needed from the modular cable set. Verify all connections are secure before powering on the system and configure BIOS/UEFI power settings as required for ATX 3.1 features. During first startup, monitor system voltages and temperatures to confirm stable operation.
Usage recommendations
For optimal performance and longevity, use high-quality modular cables as supplied, maintain case airflow by routing unused cables externally or storing them outside the main airflow path, and ensure your chassis supports the thermal requirements of an 850W unit. When installing high-power PCIe 5.1 GPUs, connect all recommended PCIe power connectors and check GPU vendor guidelines for power delivery. Regularly inspect connectors and clean dust from the intake and exhaust areas to sustain efficient cooling and reliable operation.

## FAQ

### How much does the lian li SX Series 850W 80 PLUS Platinum PSU cost, and is it available for purchase?

The price is 136.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 120 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 10.08.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

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

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv 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 lian li 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 lian li service centers and through AiO.lv

### 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 AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11670117/68533173_large.webp