HP
HP K0Q39AA 7.4 mm to 4.5 mm power adapter
Converts a 7.4 mm barrel connector to a 4.5 mm plug for HP power supplies
- Converts 7.4 mm barrel plugs to 4.5 mm jacks
- Genuine HP part ensures correct voltage delivery
- Compact dongle fits tight laptop ports
- Includes documentation for quick setup
7.4 mm to 4.5 mm connector adapter
This HP K0Q39AA adapter converts a 7.4 mm barrel jack to a 4.5 mm plug for compatible power supplies. It allows a newer HP charger to connect to an older laptop port. The dongle provides a direct mechanical and electrical link between the two sizes. No configuration or driver installation is required.
Suits owners of legacy HP laptops with 4.5 mm inputs
Buyers who need a 7.4 mm plug for a modern laptop cannot use this dongle. Users with USB-C or proprietary slim-tip charging ports should look at a different adapter. The single conversion direction does not support the reverse connection. Anyone requiring a longer cable run will need an extension cord separately.
Highlights
- Converts 7.4 mm barrel plugs to 4.5 mm jacks
- Genuine HP part ensures correct voltage delivery
- Compact dongle fits tight laptop ports
- Includes documentation for quick setup
Specifications
| Brand | Hewlett Packard |
|---|---|
| Shipping weight | 0.09 kg |
| Package size | 241 × 178 × 25 mm |
Questions about this item
Does my laptop need a 7.4 mm barrel port to use this HP K0Q39AA adapter?
Yes, the dongle plugs into a 7.4 mm barrel input on the laptop and converts it to a 4.5 mm tip for the charger.
Will this adapter let me keep using my older 4.5 mm HP charger with a newer 7.4 mm laptop?
Exactly, it bridges the 7.4 mm laptop socket to the 4.5 mm plug on your existing power supply.
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