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header-product Power supply unit Lian Li RS1200G 1200 W 20+4 pin ATX 80 PLUS Gold Black
153.49 €

Power supply unit Lian Li RS1200G 1200 W 20+4 pin ATX 80 PLUS Gold Black

Fast delivery available
Lian Li RS1200G PSU 1200 W Photo 1
Lian Li RS1200G PSU 1200 W Photo 2
Lian Li RS1200G PSU 1200 W Photo 3
Lian Li RS1200G PSU 1200 W Photo 4
Lian Li RS1200G PSU 1200 W Photo 1
Lian Li RS1200G PSU 1200 W Photo 2
Lian Li RS1200G PSU 1200 W Photo 3
Lian Li RS1200G PSU 1200 W Photo 4
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Power supply unit Lian Li RS1200G 1200 W 20+4 pin ATX 80 PLUS Gold Black

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Short description

Lian Li RS1200G is an ATX power supply unit delivering 1200 W total power with a 20+4 pin ATX motherboard connector. It supports 100–240 V AC input at 50/60 Hz and carries an 80 PLUS Gold efficiency rating. The black PSU features a 135 mm cooling fan, single-fan design, standard ATX dimensions and cables with a 62 cm motherboard cable and 500 mm peripheral cables, suitable for high-performance desktop PCs and gaming builds.
Available at price 153.49 €: 179 pcs.
Total available for order: 329 pcs.
Warranty: 2 Years
SKU: 11671188
Manufacturer: lian li
free shipment

Cheapest delivery:

Venipak Pickup LV, Venipak Locker LV

Pick-up points

Venipak Pickup LV

Venipak Locker LV

Cost

1.89 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
10.08.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
13.08.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 € (Weight: 1.00 kg)
Parcel couriers
Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Latvijas Pasts nodaļa
13.08.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.89 €
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Payment Methods:
Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay
Available for private customers at price 159.99 €: 50 pcs.
Together cheaper
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Product information

Description

The Lian Li RS1200G is a 1200 W ATX power supply designed for desktop PCs. It supports 100–240 V AC input at 50/60 Hz and features a 20+4 pin ATX motherboard connector. The PSU is built in a compact 150 × 86 × 150 mm chassis with a 135 mm cooling fan and delivers efficient power with an 80 PLUS Gold certification and Cybenetics Platinum-level real-world efficiency.

Advantages

The RS1200G offers dual installation options and a 90° rotatable AC inlet for flexible mounting and cleaner cable routing in standard or vertical PSU orientations. Its dual-sided 20+4 pin output and ultra-flexible flat cables with magnetic clips simplify cable management, while braided-textured main cable and an included cable comb improve build appearance. Industrial-grade German EPCOS capacitors and a reinforced dual-color 12V-2×6 GPU cable provide stable, long-term performance. An integrated RS Hub supplies additional USB connectivity directly from the PSU, and a protective dust cover is provided for the 18+10 pin output. The unit ships with a full set of modular cables and includes a 10-year warranty for the PSU and a 2-year warranty for the RS Hub.

Suitable for

  • High-performance gaming PCs and workstations requiring up to 1200 W power
  • Compact or dual-chamber case builds where space and cable routing are constrained
  • Systems using next-generation GPUs that require 12V-2×6 power connectors

Key specifications

  • Total power: 1200 W
  • AC input: 100–240 V, 50/60 Hz
  • Certification: 80 PLUS Gold (Cybenetics Platinum-level efficiency)
  • Motherboard connector: 20+4 pin ATX (dual-sided routing)
  • Fan: 135 mm, 0–2400 RPM
  • Form factor and size: ATX, 150 × 86 × 150 mm
  • Color: Black
  • Included connectivity: RS Hub with USB Type-A and USB-to-USB cables
  • Capacitors: German EPCOS industrial-grade
  • Warranty: 10 years (PSU), 2 years (RS Hub)

How to use

Install the RS1200G into your case in the preferred orientation using either the standard or side-mount option. Rotate the AC inlet if needed to match the case layout and route the 20+4 pin motherboard cable from the side that provides the cleanest path. Connect the dual-color 12V-2×6 cables to compatible GPU power ports and secure modular cables as required. Use the RS Hub to route USB connections from the PSU rather than the motherboard when desired. Reconfirm all connections before powering on and ensure the PSU fan intake is unobstructed for proper cooling.

Usage recommendations

For optimal stability and cable management, plan cable routing before installation, use the provided magnetic clips to shorten excess flat cables, and choose the AC inlet orientation that minimizes bends in power cords. Verify GPU connector compatibility with the RS1200G native 12V-2×6 terminals and keep ventilation paths clear to maintain low noise and temperatures.

Specifications

Total power:
1200 W
Motherboard power connector:
20+4 pin ATX
80 PLUS certification:
80 PLUS Gold
Fan diameter:
135 mm
Product colour:
Black
All features

Power

Total power:
1200 W
Power Factor Correction (PFC) type:
Active
Power protection features:
Under voltage, Under temperature, Surge & inrush protection (SIP), Short circuit, Over voltage, Over power, Over current, No load operation
Combined power (+3.3V):
100 W
Combined power (+12V):
1200 W
Combined power (+5V):
100 W
Combined power (+5Vsb):
100 W
Input current:
8 - 15
AC input frequency:
50/60
AC input voltage:
100 - 240

Ports & interfaces

Motherboard power connector:
20+4 pin ATX
Peripheral (Molex) power connectors (4-pin):
4
ATX power connector (20+4 pin):
Yes
PCI Express power connectors (6+2 pin):
2
Cabling type:
Fully-Modular
Motherboard power cable length:
620 mm
CPU power cable length:
700 mm
Peripheral (Molex) power cable length:
500
PCI Express power cable length:
650 mm

Performance

Purpose:
PC
80 PLUS certification:
80 PLUS Gold
Mean time between failures (MTBF):
100000 h
Noise level: Not only energy saving helps to protect the environment but also noise level reduction. Noise level reduction up to 3 dB really means noise level reduction in 2 times. For example, a device with noise level 39 dB (А) will be two times quieter than a devise with a noise level 42 dB (А). Energy-saving certificate that shows noise level plays the role of an additional objective indicator basing on which You can successfully choose a product.
36.27 dB
Bearing technology:
FDB
ATX version:
3.1
Power supply unit (PSU) form factor:
ATX

Design

Fan diameter:
135 mm
Number of fans:
1 fan(s)
Fan speed:
0 - 2400
Product colour:
Black

Weight & dimensions

Height:
150 mm
Width:
86 mm
Depth:
150 mm

Operational conditions

Operating temperature (T-T):
0 - 40

Description

Machine translation. Load original

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Stock data
Warehouse Stock Delivery to the store Store Price
BT19 50 Tuesday Best delivery 159.99 €
WH320 50 27.07.2026 179.99 €
WH354 50 03.08.2026 191.99 €
Available only for legal entities
Warehouse Stock Delivery to the store Store Price
WH109 179 10.08.2026 153.49 € Best price
159.99 €
Stock: 50
Delivery Date: Tuesday Best delivery
Warehouse: BT19
179.99 €
Stock: 50
Delivery Date: 27.07.2026
Warehouse: WH320
191.99 €
Stock: 50
Delivery Date: 03.08.2026
Warehouse: WH354
Available only for legal entities
153.49 €
Stock: 179
Delivery Date: 10.08.2026
Warehouse: WH109

Customer reviews

Customer questions

FAQ

How much does the Lian Li RS1200G PSU 1200 W cost, and is it available for purchase?

The price is 153.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 329 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. 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: total power, motherboard power connector, 80 plus certification, fan diameter, product colour, 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.

Where can I download the instructions for Lian Li RS1200G PSU 1200 W?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.
warranty
14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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