# DC adapter dongle ProXtend DCDONGLE-7450-5517-AC 7.4mm to 5.5mm power plug converter

**URL:** https://aio.lv/en/product--proxtend-dcdongle-7450-5517-ac--4463507
**Data updated:** 2026-02-12 14:09 (EET)
**Category:** Cable Adapters & Converters
**Manufacturer:** ProXtend
**Manufacturer code:** DCDONGLE-7450-5517-AC
**EAN:** 5714590027655
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 7.49 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 6.19 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--proxtend-dcdongle-7450-5517-ac--4463507

## 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 | 1.99 EUR |
| Courier delivery to door | 13.07.2026 | 4.99 EUR |

## Summary description

ProXtend DCDONGLE-7450-5517-AC is a DC adapter dongle that converts a 7.4 mm power plug to a 5.5 mm plug. It provides a simple, passive connection solution for matching incompatible DC barrel sizes between power supplies and devices. Suitable for laptops, routers and other electronics that require a 5.5 mm input when only a 7.4 mm plug is available.

## Long description

ProXtend DCDONGLE-7450-5517-AC is a compact DC adapter dongle that converts a 7.4 mm power plug to a 5.5 mm plug, providing a passive and reliable connection between mismatched barrel sizes. The adapter enables use of an existing power supply with devices that require a 5.5 mm input when only a 7.4 mm plug is available, maintaining the original polarity and offering a quick mechanical fit without electronics or voltage conversion.
Advantages
This dongle offers a simple and space-saving solution for matching incompatible DC barrel connectors, avoiding the need to replace power supplies or device cables. Its passive design preserves the supplied voltage and polarity, and the solid construction ensures stable contact and minimal insertion play. The adapter is lightweight and portable, suitable for carrying with laptop chargers or network equipment power supplies.
Suitable for
 Connecting a power supply with a 7.4 mm plug to devices requiring a 5.5 mm DC input
 Temporary power solutions for laptops, routers and POS equipment
 Field repairs, testing and setup where matching barrel sizes is necessary
Key specifications
 Input barrel diameter: 7.4 mm
 Output barrel diameter: 5.5 mm
 Connector type: DC barrel adapter (male to female conversion)
 Design: passive, no voltage conversion or active electronics
 Typical use: DC power signal only; maintains existing voltage and polarity
 Construction: compact, lightweight mechanical adapter
How to use
Insert the 7.4 mm plug of the power supply into the adapter’s 7.4 mm receptacle until it seats firmly. Plug the adapter’s 5.5 mm output into the device’s DC input jack, ensuring correct polarity and a snug fit. Verify that the device powers on and operates normally; if the device does not power, disconnect and recheck connections and voltage compatibility. Do not attempt to use the adapter with power supplies that exceed the device’s rated voltage or current.
Usage recommendations
Use the adapter only when the power supply voltage and polarity match the device requirements. Avoid forcing connectors or using the adapter with loose or damaged jacks. For permanent installations or where electrical safety certification is required, consider using a dedicated compatible power adapter or professionally fitted cable.

## FAQ

### How much does the ProXtend DCDONGLE-7450-5517-AC DC adapter 7.4mm→5.5mm cost, and is it available for purchase?

The price is 7.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 37 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. 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 ProXtend 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 ProXtend 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/4463507/66641011_large.webp