# Power supply Lian Li SX Series 80 PLUS Platinum fully modular PCIe 5.1 ATX 3.1 1,200 W

**URL:** https://aio.lv/en/product--lian-li-g9psx1200pw000eu--11670121
**Data updated:** 2026-02-16 07:06 (EET)
**Category:** Power Supplies (PSU)
**Manufacturer:** lian li
**Manufacturer code:** G9P.SX1200P.W000.EU
**EAN:** 4718466021304
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 144.49 €
**Prices and availability valid until:** 2026-08-10 23:59
**Price without VAT (21%):** 119.41 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--lian-li-g9psx1200pw000eu--11670121

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Thursday | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

This Lian Li SX Series 80 PLUS Platinum power supply is a fully modular unit delivering 1,200 W for high-performance systems. It supports PCIe 5.1 and ATX 3.1 standards, providing modern connector compatibility and efficient power delivery. Ideal for gaming PCs, workstations, and builds requiring stable multi-GPU or high-core-count CPU power. Fully modular cabling simplifies installation and cable management.

## Long description

This Lian Li SX Series 80 PLUS Platinum fully modular power supply delivers 1,200 W of continuous power and complies with ATX 3.1 and PCIe 5.1 standards for modern desktop systems. Designed for high-performance builds, the unit provides efficient power conversion and a selection of modern connectors to support current-generation GPUs and CPUs while enabling tidy cable routing through its fully modular design.
Advantages
The 80 PLUS Platinum certification ensures high efficiency across typical load ranges, reducing heat generation and lowering energy costs compared with lower-efficiency units. Full modularity allows users to attach only the cables they need, simplifying installation and improving internal airflow. Compliance with ATX 3.1 and PCIe 5.1 provides compatibility with the latest power delivery requirements for GPUs and motherboards. The 1,200 W output supports multi-GPU configurations and high-core-count CPUs without compromising stability.
Suitable for
 High-end gaming PCs with modern GPUs
 Workstations for 3D rendering, video editing, and scientific computing
 Overclocked systems and multi-GPU builds
 PC builds requiring PCIe 5.1 and ATX 3.1 compatibility
Key specifications
 Rated output: 1,200 W continuous
 Efficiency: 80 PLUS Platinum
 Form factor compatibility: ATX 3.1
 PCIe support: PCIe 5.1 compatible connectors
 Cabling: fully modular cable system for simplified routing
 Cooling: fan-assisted cooling with thermal management (manufacturer-defined profile)
How to use
Install the power supply into a compatible ATX case following standard safety procedures: switch off and unplug the system, position the unit with correct airflow orientation, and secure it with screws. Connect the required modular cables to the PSU first, then to the motherboard, CPU, GPU(s), storage devices and peripherals, ensuring connectors are fully seated. Verify all voltage settings and power connections before powering on the system. Allow the PSU to run under moderate load initially to confirm stable operation and proper fan behavior.
Usage recommendations
For long-term reliability, maintain good case airflow and periodic dust cleaning. Use only required modular cables to reduce clutter and improve cooling. Ensure your build components are compatible with ATX 3.1 and PCIe 5.1 power requirements; consult component documentation when pairing with next-generation GPUs or power-hungry CPUs.

## FAQ

### How much does the Lian Li SX Series 80 PLUS Platinum 1,200 W PSU cost, and is it available for purchase?

The price is 144.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 60 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 Thursday 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: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Lian Li SX Series 80 PLUS Platinum 1,200 W PSU be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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/11670121/68548932_large.webp