# Outdoor 4G LTE Antenna QOLTEC 57021 — 18 dBi gain, 600–2700 MHz, 50 Ω, 50 W, white plastic housing

**URL:** https://aio.lv/en/product--qoltec-57021--4323619
**Data updated:** 2026-01-21 10:56 (EET)
**Category:** Wi‑Fi Antennas
**Manufacturer:** QOLTEC
**Manufacturer code:** 57021
**EAN:** 5901878570211
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 28.49 €
**Prices and availability valid until:** 2026-07-23 23:59
**Price without VAT (21%):** 23.55 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--qoltec-57021--4323619

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 30.06.2026 | free |
| Pickup points | 03.07.2026 | 1.89 EUR |
| Courier delivery to door | 03.07.2026 | 4.99 EUR |

## Summary description

Outdoor 4G LTE antenna QOLTEC 57021 provides up to 18 dBi gain across 600–2700 MHz for improved mobile and data reception. Designed for external installation, it features a white plastic housing, 50 Ω impedance and 50 W power handling. Weighing 525 g, the antenna suits rural or urban deployments to extend signal range and stabilize connections for routers, modems and LTE devices.

## Long description

The 4G LTE Antenna Qoltec 57021 18 dBi Outdoor is an external cellular antenna designed to improve reception for 4G LTE devices. Intended for outdoor installation, it increases signal strength and stability for routers, modems and other equipment with an external antenna input. The model is identified by MPN 57021 and EAN 5901878570211.
Advantages
The antenna provides a high directional gain of 18 dBi to enhance reception in areas with moderate to weak cellular coverage. It is built for outdoor use to reduce interference from indoor obstructions and allows flexible placement to optimize signal quality. Compatibility with devices that accept external 4G LTE antennas enables improved connectivity for routers and modems.
Suitable for
Improving 4G LTE signal for home routers and modems
Enhancing connectivity at small offices and remote locations
Use with gateways and equipment that support external cellular antennas
Key specifications
Brand: QOLTEC
Model: 57021
Product type: 4G LTE external antenna
Gain: 18 dBi
Intended use: Outdoor (external) installation
Category: Wi‑Fi antennas / cellular accessories
MPN: 57021
EAN: 5901878570211
How to use
Select an elevated outdoor mounting location with a clear line of sight toward the nearest cellular base station when possible. Secure the antenna to a mast, pole or wall mount using appropriate brackets and hardware, run the antenna cable into the building and connect it to the external antenna port of your router, modem or gateway. After connection, adjust the antenna direction gradually while monitoring signal levels on your device to find the optimal orientation. Use weatherproofing for external connections and fasten cables to prevent movement.
Usage recommendations
Verify compatibility with your modem or router before installation. For best results, mount the antenna away from large metal surfaces and sources of interference; use a low-loss coaxial cable and proper grounding for outdoor installations.

## FAQ

### How much does the Outdoor 4G LTE Antenna QOLTEC 57021 cost, and is it available for purchase?

The price is 28.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 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 30.06.2026 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. 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 QOLTEC 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 QOLTEC 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/4323619/52114948_large.webp