# Power adapter MEAN WELL GST120A20-R7B, 120 W, input 85–264 V, output 20 V, RoHS, 67×167×35 mm

**URL:** https://aio.lv/en/product--mean-well-gst120a20-r7b--1621861
**Data updated:** 2026-01-06 11:06 (EET)
**Category:** Power Supplies (PSU)
**Manufacturer:** mean well
**Manufacturer code:** GST120A20-R7B
**EAN:** 4021087028981
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 69.49 €
**Prices and availability valid until:** 2026-07-31 23:59
**Price without VAT (21%):** 57.43 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--mean-well-gst120a20-r7b--1621861

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 29.07.2026 | free |
| Pickup points | 03.08.2026 | 1.89 EUR |
| Courier delivery to door | 03.08.2026 | 4.99 EUR |

## Summary description

The MEAN WELL GST120A20-R7B is a 120 W external power adapter with wide input range 85–264 V and fixed 20 V output. Compact dimensions (67×167×35 mm) make it suitable for industrial equipment, commercial electronics and desktop devices. Certified to RoHS, it provides stable power delivery for reliable operation. Pack quantity: 20 pieces.

## Long description

The MEAN WELL GST120A20-R7B is a 120 W AC-DC industrial desktop adapter with active PFC and a fixed 20 V DC output at 6 A. It accepts a wide input voltage range of 85–264 V AC and uses a 3-pole IEC320-C14 AC inlet. With compact dimensions of 67×167×35 mm and RoHS compliance, it is designed for reliable power delivery to industrial equipment, commercial electronics and desktop devices.
Advantages
The adapter delivers a stable 20 V / 6 A output and includes power factor correction for improved efficiency and lower mains distortion. Its wide 85–264 V input range allows worldwide use without additional converters. The compact housing (67×167×35 mm) eases installation in space-constrained locations, and RoHS certification ensures compliance with environmental standards.
Suitable for
Industrial control units and instrumentation
Commercial electronics and POS systems
Desktop devices and embedded systems
Laboratory equipment requiring stable 20 V supply
Key specifications
Manufacturer: MEAN WELL
Model: GST120A20-R7B
Output: 20 V DC, 6 A
Power: 120 W
Input voltage: 85–264 V AC
AC inlet: IEC320-C14 (3-pole)
Dimensions: 67 × 167 × 35 mm
Compliance: RoHS
MPN: GST120A20-R7B
EAN: 4021087028981
How to use
Connect the adapter to the mains using a compatible IEC320-C13 power cord and plug the DC output into the equipment that requires a 20 V DC supply. Ensure the connected device’s input voltage and current requirements do not exceed 20 V and 6 A. Place the adapter in a well-ventilated area and avoid covering the ventilation openings during operation.
Usage recommendations
For reliable long-term operation, install the adapter where ambient temperature and ventilation meet the manufacturer's guidelines, verify polarity and connector compatibility before powering devices, and avoid overloading beyond the rated 6 A output.

## Specifications

| Feature | Value |
|---|---|
| Input voltage | 85 - 264 |
| Output voltage | 20 |
| Output current | 6 A |
| Output power | 120 W |

### Certificates

| Feature | Value |
|---|---|
| Compliance certificates | RoHS |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.06 kg |
| Height | 35 mm |
| Width | 67 mm |
| Depth | 167 mm |

### Logistics data

| Feature | Value |
|---|---|
| Quantity per pack | 20 pc(s) |

## FAQ

### How much does the Power adapter MEAN WELL GST120A20-R7B 120 W cost, and is it available for purchase?

The price is 69.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 15 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 29.07.2026 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: Bank transfer. 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 mean well 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 mean well 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: weight, 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 Power adapter MEAN WELL GST120A20-R7B 120 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.

## Image

https://aio.lv/img/cache/product/1621861/64167543_large.webp