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AliExpress DC 12V 5.5x2.1mm Power Connectors (5 Pairs)
AliExpress DC 12V 5.5x2.1mm Power Connectors (5 Pairs), view 2AliExpress DC 12V 5.5x2.1mm Power Connectors (5 Pairs), view 3AliExpress DC 12V 5.5x2.1mm Power Connectors (5 Pairs), view 4AliExpress DC 12V 5.5x2.1mm Power Connectors (5 Pairs), view 5AliExpress DC 12V 5.5x2.1mm Power Connectors (5 Pairs), view 6
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DC 12V 5.5x2.1mm Power Connectors (5 Pairs)

$1.39$2.31Save 40%

In stock at aliexpress.com

A set of 5 pairs of DC 12V 5.5x2.1mm female and male power connectors for LED strips and CCTV cameras. They are barrel jack adapters that let you extend or connect a 12V supply. They have over 4,300 orders and 96.7% positive feedback on AliExpress at $1.39.

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Price from AliExpress at our last check (refreshed weekly). The final price, shipping and any import charges show at AliExpress checkout. We may earn a commission if you buy.

Highlights

  • 5 pairs of male and female plugs
  • 5.5 x 2.1 mm size
  • 12V DC
  • LED strip and CCTV use

Best for

People wiring 12V LED strips or security cameras.

Things to consider

  • Check your device's barrel size; 5.5x2.1 is common but not universal.
  • Polarity (center positive) isn't stated.
  • Screw-terminal quality varies.
  • Allow around 7 to 21 days for delivery to a US address, and less with AliExpress Choice items. The listed price may not be the final cost, because import charges can apply to US orders, so compare the final total, not just the item price.

Key specs

Price$1.39
Pairs5
Size5.5 x 2.1 mm
VoltageDC 12V
AliExpress seller dataover 4,300 orders, 96.7% positive feedback

Our take

Cheap connectors for 12V DIY.

DC 12V 5.5x2.1mm Power Connectors (5 Pairs) at a glance

BrandAliExpress
Price$1.39 (was $2.31)
TypeFamily Intelligence System
AvailabilityIn stock at aliexpress.com
ReturnsEligible items can be returned within 90 days of payment, with the first return on each…

Price check

At $1.39, the DC 12V 5.5x2.1mm Power Connectors is one of AliExpress's more affordable items, whose 52,612 listed products run $1 to $1,229.

It's currently 40% below its listed price of $2.31. Sale prices can end without notice, so check the live price before you order.

Similar items from other brands we track run $4.99 to $22.14.

Buying from AliExpress

AliExpress is a legitimate marketplace that is worth using for cheap, low-risk things like cables, tools, cleaning supplies and small home items, as long as you can wait and you buy from well-rated sellers. Skip it for anything safety-critical, brand-name or urgent. Check the seller's feedback score, the delivery estimate and the import-charge line at checkout before you pay.

Shipping
AliExpress's 2024 US guarantee listed Choice orders at 5 to 12 days and standard orders at 8 to 14 days, but real-world standard shipping from China often runs longer. Items marked Ship from United States come from local stock. Free shipping on Choice orders depends on a minimum order shown at checkout.
Returns
Eligible items can be returned within 90 days of payment, with the first return on each order free, according to AliExpress's 2024 US announcement. Return terms vary by seller and item, so check the product page. Custom, perishable and hygiene items are generally excluded.
Warranty
AliExpress does not publish a marketplace-wide product warranty. Coverage depends on the individual seller, and Buyer Protection covers non-delivery, damage and not-as-described claims instead.
Payment
US shoppers can pay by Visa, Mastercard, American Express or Discover, PayPal, Apple Pay and Google Pay. Instalment options such as Klarna and PayPal Pay Later appear on some orders, and availability varies.
International
AliExpress sells to shoppers worldwide. For US orders, import duties on low-value parcels have applied since the duty-free exemption ended in 2025, and state sales tax is added at checkout.

Read our full AliExpress review and shop all products →

Frequently asked questions

Will it fit my power adapter?
Check that your plug is 5.5x2.1mm.
Can they carry a lot of power?
Current rating isn't stated; keep to low-power loads.
Are they soldered?
Not stated; likely terminal style.
Are returns possible on AliExpress?
A lost, damaged or wrong item is handled by filing a dispute on the AliExpress order page, so keep photos of any damage. Delivery to the US typically takes 7 to 21 days, and less with AliExpress Choice items.
Is the DC 12V 5.5x2.1mm Power Connectors on sale?
Yes. AliExpress lists it at $1.39, down from $2.31 (40% off). Sale prices change, so confirm the live price on aliexpress.com.
Is there a discount on the DC 12V 5.5x2.1mm Power Connectors?
AliExpress publishes these ways to save: Coins in the app. AliExpress sets the terms, which can change; our AliExpress coupons page has the details.
What is AliExpress's return policy?
Eligible items can be returned within 90 days of payment, with the first return on each order free, according to AliExpress's 2024 US announcement. Return terms vary by seller and item, so check the product page. Custom, perishable and hygiene items are generally excluded.
How long does AliExpress take to ship?
AliExpress's 2024 US guarantee listed Choice orders at 5 to 12 days and standard orders at 8 to 14 days, but real-world standard shipping from China often runs longer. Items marked Ship from United States come from local stock. Free shipping on Choice orders depends on a minimum order shown at checkout.
Does the DC 12V 5.5x2.1mm Power Connectors come with a warranty?
AliExpress's published warranty terms: AliExpress does not publish a marketplace-wide product warranty. Coverage depends on the individual seller, and Buyer Protection covers non-delivery, damage and not-as-described claims instead.
Where can I buy the DC 12V 5.5x2.1mm Power Connectors?
The DC 12V 5.5x2.1mm Power Connectors is sold directly by AliExpress on aliexpress.com. The Shop now button on this page goes straight to the product there.
Is the DC 12V 5.5x2.1mm Power Connectors in stock?
Yes. AliExpress lists it as in stock on aliexpress.com as of our latest check. Stock and prices refresh throughout the day.
Is AliExpress a legit store?
AliExpress is a legitimate marketplace that is worth using for cheap, low-risk things like cables, tools, cleaning supplies and small home items, as long as you can wait and you buy from well-rated sellers. Skip it for anything safety-critical, brand-name or urgent. Check the seller's feedback score, the delivery estimate and the import-charge line at checkout before you pay. Our full AliExpress review covers shipping, returns and what to check before ordering.

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