# Uninterruptible Power Supply EVER DUO 550 PL AVR USB 550VA, 0.55 kVA / 330 W, Line-Interactive, 3×C13 outlets, 12V 5Ah battery

**URL:** https://aio.lv/en/product--ever-tdavrto-000k5501--4448031
**Data updated:** 2026-01-21 13:33 (EET)
**Category:** UPS
**Manufacturer:** EVER
**Manufacturer code:** T/DAVRTO-000K55/01
**EAN:** 5907683607180
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 71.49 €
**Prices and availability valid until:** 2026-07-28 23:59
**Price without VAT (21%):** 59.08 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ever-tdavrto-000k5501--4448031

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 08.07.2026 | free |
| Pickup points | 13.07.2026 | 1.89 EUR |
| Courier delivery to door | 13.07.2026 | 4.99 EUR |

## Summary description

EVER DUO 550 PL is a line-interactive UPS with AVR and USB interface, rated 550 VA (0.55 kVA) / 330 W. It provides automatic voltage regulation, surge and short-circuit protection, sine waveform output and cold-start capability. Inputs: 162–290 V, outputs: 191–253 V at 50/60 Hz. Compact black tower with 3 C13 outlets, sealed 12 V 5 Ah VRLA battery, natural cooling and IP20 protection.

## Long description

EVER DUO 550 PL is a line-interactive uninterruptible power supply (UPS) with automatic voltage regulation (AVR) and USB interface. Rated at 0.55 kVA (550 VA) / 330 W, it delivers sine-wave output and provides surge protection, short-circuit protection and cold-start capability. The UPS accepts input voltages from 162 to 290 V and supplies regulated output voltage in the 191–253 V range at 50/60 Hz. The compact black tower design includes three C13 AC outlets and a sealed 12 V 5 Ah VRLA battery with natural cooling and IP20 protection.
Advantages
The device maintains stable output voltage through AVR, protecting connected equipment from under- and over-voltage events. Line-interactive topology with sine output ensures cleaner power for sensitive electronics. Built-in surge and short-circuit protection reduce the risk of damage from transients, while audible alarms and a USB interface provide clear status indication and basic communication. The compact tower form and three C13 outlets allow convenient placement and connection of small office or home equipment.
Suitable for
Home office PCs and workstations
Networking equipment such as routers and switches
Small NAS devices and external drives
Point-of-sale terminals and peripherals
Key specifications
UPS topology: Line-Interactive
Rated output power: 0.55 kVA / 330 W
Input voltage range: 162–290 V
Output voltage range: 191–253 V
Input / output frequency: 50/60 Hz
Waveform: Sine
Automatic Voltage Regulation (AVR): Yes
Surge protection and short-circuit protection: Yes
Batteries: sealed lead-acid (VRLA), 12 V, 5 Ah, 1 unit
Cold-start function: Yes
AC outlets: 3 × C13
USB port: Yes
Cooling: Natural
Ingress protection: IP20
Form factor and colour: Tower, black
Dimensions (W×D×H): 84 × 252 × 158 mm
Weight: 3.8 kg
How to use
Place the UPS on a stable, flat surface with adequate ventilation and connect the input to a mains supply within the specified voltage range. Attach required equipment to the three C13 outlets and, if needed, connect the USB port to a computer for status monitoring. Ensure the internal 12 V battery is installed and charged before relying on battery-backed operation. In case of mains failure the UPS will switch to battery power automatically and emit audible alarms to indicate fault, low battery or overload conditions.
Usage recommendations
Locate the UPS away from heat sources and moisture, maintain ambient temperature within 0–40 °C and relative humidity within 20–80% during operation. Periodically test the battery and replace it according to the manufacturer’s service interval or when capacity declines. Avoid connecting loads that exceed the rated 330 W output to prevent overload conditions.

## FAQ

### How much does the UPS EVER DUO 550 PL AVR USB 550VA cost, and is it available for purchase?

The price is 71.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 12 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 08.07.2026 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, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can UPS EVER DUO 550 PL AVR USB 550VA 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 EVER 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 EVER 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/4448031/51573911_large.webp