LJO-EEIH 90W 19V 4.74A Power Adapter 7.4mm Tip

This LJO-EEIH 90W AC adapter is a 19V 4.74A replacement with a 7.4mm x 5.0mm barrel and center pin, built for older HP All-in-One desktops that require the larger tip (not compatible with the 4.5mm blue-tip 24-df series).

If your HP All-in-One stopped powering up or the original brick is damaged, this replacement supplies steady power at the correct voltage and amperage for many legacy Pavilion, TouchSmart and Omni all-in-one desktops. It’s engineered with protection circuits and quality materials to reduce interference and heat, and ships with a US power cord so you can plug in and go.

How do I confirm this adapter matches my HP All-in-One?

Verify the physical connector and the required voltage/amperage before purchasing. This unit uses a 7.4mm outer barrel with a 5.0mm inner diameter and a central pin — a noticeably larger tip than later HP blue-tip models.

• Measure your current charger tip: 7.4mm x 5.0mm required.
• Check your laptop/PC label for 19V and acceptable current (4.74A or lower-rated 3.42A replacements may also work).
• Not for newer HP AIOs with 4.5mm blue tips (e.g., 24-df, 24-dp, 24-cb, 22-dd).

What safety and performance features are included?

The adapter delivers a clean 19V 4.74A output with internal circuitry to guard against common electrical faults. CE, FCC and RoHS compliance indicate it meets widely accepted safety and material standards.

• Built-in IC protection for over-voltage, over-current, short-circuit, and over-temperature.
• Fire-retardant casing and high-purity copper wiring for reliable conduction.
• Anti-interference magnetic ring to reduce noise affecting the AIO.

Which HP models are supported by this 7.4mm adapter?

This power brick is made for older HP All-in-One families that originally shipped with the larger barrel connector. It fits many Pavilion, TouchSmart and Omni AIOs—review your model label against the list before ordering.

• Pavilion series: 18-5000, 19-2000, 20-b/f/r, 21-h, 23-b/g/h models.
• TouchSmart series: 310, 320, 520, 600, 610 families.
• Omni series: 100, 120, 200, 228 and similar older AIOs.

What comes in the box and how is warranty handled?

The package arrives with the AC adapter and a US mains cord so you can connect immediately. LJO-EEIH provides customer support and a limited warranty period to address manufacturing defects or fit issues.

• Included: 1x LJO-EEIH 90W AC adapter (7.4×5.0mm tip) and 1x US power cord.
• Manufacturer warranty and accessible customer support for pairing help.
• Contact the seller with your PC model number if you’re uncertain about compatibility.

Who is this for? If you own an older HP All-in-One desktop that originally used a large 7.4mm barrel with a center pin and you need a reliable replacement brick rated 19V 4.74A, this LJO-EEIH 90W adapter is designed for that exact use. It’s ideal for users seeking a direct-fit power solution with safety protections and sturdy construction; do not use it on HP AIOs that require the smaller 4.5mm blue-tip connector.