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Small black cylindrical male power adapter connector with 4.0x1.7mm tip

allentian

allentian PD 18.5V-20V 4.0x1.7mm Male Adapter Connector (Black) accessory

SKU CH-TN0F-2K7KJ

A compact 18.5 V to 20 V barrel adapter with automatic voltage selection for plug-and-play laptop charging

  • Product colorBlack

Color Black

  • Durable construction for reliable daily use
  • Compact 4.7x1.3cm size fits in any bag
  • Plug-and-play design requires no setup
  • Automatic 18.5V-20V selection protects devices
  • 0x1.7mm male connector ensures secure fit

Power adapter connector for 18.5–20 V laptops

This compact male adapter fits barrel ports measuring 4.0 mm by 1.7 mm and accepts input between 18.5 V and 20 V. It targets users who need a replacement or spare tip for compatible power bricks. The black finish matches most charger housings.

Automatic voltage selection simplifies use

The connector detects the supply voltage within the supported range and adjusts without manual switching. Plug-and-play operation means no drivers or configuration are required. Its small 4.7 cm by 1.3 cm body adds minimal bulk to a laptop bag.

4.0 × 1.7 mm barrel size determines fit

Only devices with a matching 4.0 mm outer diameter and 1.7 mm inner diameter will connect securely. Buyers whose laptops use a different barrel dimension cannot use this adapter.

How it compares

Measured against everything we stock in Cable Locks & Laptop Extras, at today’s prices. Recalculated every night.

Price $10.99
Cheaper than about 67% of the 8,808 comparable items (median $16.99).

Specifications

Product
Product colorBlack

Other versions of this model

5 more in the same range

Questions about this item

Will the 4.0x1.7mm connector tip need periodic replacement?

The connector tip is a fixed metal component; no replacement schedule exists under normal use.

What limits continuous use of the automatic voltage selection?

The adapter handles 18.5V to 20V input; sustained operation stays within this range without additional limits.

Does the adapter generate noticeable heat during all-day use?

The small 4.7x1.3cm passive unit runs cool; no active cooling is required.

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