S SKSTYLE SK90A195231 45W Laptop Charger, 19.5V Blue-Tip Adapter

If you need a charger matched to an HP laptop’s blue-tip power connection, this S SKSTYLE adapter is built around that specific fit. Choosing by connector and voltage—not wattage alone—helps narrow down the right replacement.

It delivers 19.5V at 2.31A for a 45W output and uses an HP Smart Blue Tip connector measuring 4.5 x 3.0mm. The package includes an AC power cable.

Could this be the right match for your laptop? Check that your HP model uses the blue-tip connection and the listed power requirements before connecting it.

How to use it

Connect the AC power cable to the adapter, then plug the blue-tip connector into the laptop’s matching power port. This setup is intended for compatible HP laptops, including models in the Pavilion x360, Envy, EliteBook, ProBook, Chromebook, Spectre, Stream, and ZBook families. It is not for USB-C charging ports.

For example, it can serve as a replacement adapter for a compatible HP Pavilion x360 used for schoolwork or office tasks, or as a second charger to keep with a travel bag. Its slim, lightweight design is described as suitable for carrying on the go. Confirm your specific laptop’s connector and power requirements, a familiar family name alone does not establish compatibility.

Key specifications

• Brand: S SKSTYLE
• Model: SK90A195231
• Type: Laptop AC adapter
• Output: 19.5V, 2.31A, 45W
• Connector: HP Smart Blue Tip, 4.5 x 3.0mm
• Compatible devices: Select HP laptops with the matching blue-tip power port
• What’s included: AC power cable

Why it makes sense

This adapter is aimed at a defined replacement need: powering a compatible HP laptop through its blue-tip port. That makes connector fit and electrical output the useful starting points when comparing it with a more general charger approach. The listed HP families span compact Stream and Chromebook models as well as Pavilion, EliteBook, and ProBook laptops, offering a practical option for households or workspaces with supported devices.

The product information also describes protection against overvoltage, overcurrent, short circuits, and internal overheating. Buyers often appreciate the straightforward plug-in setup and report using it as an HP replacement charger. Feedback on performance and durability is mixed, however, and some buyers raise concerns about excess heat at the power-box connector. Cord length also draws differing opinions. These reports are useful context when choosing a charger for regular use.

Worth considering if your HP laptop uses the specified blue-tip connector and calls for a 19.5V, 2.31A adapter. For a USB-C-only laptop or a different power specification, select a charger designed for that connection and requirement instead.

What to clarify

Which HP laptops does it fit? It is listed for select HP Pavilion x360, Envy, EliteBook, ProBook, Chromebook, Spectre, Stream, and ZBook models. The laptop must have the matching 4.5 x 3.0mm Smart Blue Tip power port.

What output does the adapter provide? It is rated at 19.5V and 2.31A, for a 45W output. Match these requirements to your laptop’s power specifications.

Does it work with a USB-C charging port? No. This adapter uses the HP blue-tip connector, not USB-C.

Should you buy it?

For owners of a compatible HP laptop who need a 45W replacement with the specified blue-tip connection, the SK90A195231 brings the relevant output, connector, and AC power cable together in one travel-friendly adapter. Matching the laptop’s port and power requirements makes it a focused choice for everyday charging at a desk, in class, or while traveling.