HP 7.4mm to 4.5mm DC Dongle

The HP K0Q39AA is a short DC adapter that bridges the gap between an older 7.4 mm HP power brick and a notebook that charges through a 4.5 mm barrel jack. By adding this cable to your bag, you can keep using the reliable charger you already own with newer systems such as the HP EliteBook 840, the HP ZBook 14, or any battery pack that accepts a 4.5 mm tip, including the HP CO06XL Long Life Notebook Battery.

The cable’s molded connectors hold firmly and stand up to frequent plugging and unplugging, so it works just as well in a busy office as it does on the road. Because the overall length is short, it stays tidy on a desk yet still gives enough flex to reach a docking station or an external battery. For IT departments managing mixed fleets of legacy and new HP laptops, stocking a handful of these dongles can reduce the number of different chargers that need to be kept on hand.

Whether you are traveling between client sites, setting up in a classroom, or simply want a lighter carry when commuting, this dongle lets you rely on a single adapter without sacrificing compatibility or power delivery.

Highlights:

• Connects a 7.4 mm HP power adapter to devices that use a 4.5 mm DC input
• Works with HP EliteBook 840, HP ZBook 14, and the HP CO06XL Long Life Notebook Battery
• Eliminates the cost and clutter of purchasing multiple chargers during upgrades
• Compact size and low weight make it easy to carry in a laptop sleeve or travel pouch
• Molded, durable connectors provide consistent power delivery and resist wear
• Backed by a one-year limited HP warranty