Lei Electronics Inc. NU30-4120250-I3 power adapter 12V 2.5A 30W
Delivers 12 V at 2.5 A with 100-240 V input and includes a 5.5 × 2.1 mm connector and power cord
- Works worldwide with 100-240V input range
- Delivers steady 12V 2.5A for reliable device power
- Compact 30W design fits tight spaces easily
- Includes 5.5x2.1mm connector for broad compatibility
- Supplied power cord enables immediate plug-and-play use
Power adapter specifications
This 12V 2.5A unit delivers 30W of continuous power for devices that require a regulated 12 volt supply. It accepts a universal 100-240V input at 0.8A across 50-60Hz, making it suitable for worldwide mains voltages. The barrel connector measures 5.5mm by 2.1mm, and a power cord is included with domestic purchases.
Suitable devices and limitations
The adapter suits any equipment rated for 12V 2.5A with a matching 5.5x2.1mm jack, such as certain routers, small monitors or external drive enclosures. Devices that draw more than 2.5A or require a different voltage cannot use this unit. Buyers who need a higher current rating or an alternative connector size should look at a different model.
Deciding specification
The fixed 12V 2.5A output combined with the 5.5x2.1mm barrel plug determines compatibility. Verify that the target device lists exactly 12V and a maximum draw of 2.5A or less, and that its power jack matches the 5.5mm outer and 2.1mm inner diameter.
How it compares
Measured against everything we stock in AC Adapters & Power Bricks, at today’s prices. Recalculated every night.
- Price $14.99
- Cheaper than about 85% of the 3,875 comparable items (median $23.99).
New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.
Specifications
| Product | |
|---|---|
| Model name | NU30-4120250-I3 |
Questions about this item
How can I confirm the NU30-4120250-I3 is delivering 12V 2.5A after connecting it?
Measure the output with a multimeter set to DC voltage; it should read 12 V under load, and the connected device should power on without shutting down.
Does the NU30-4120250-I3 include the AC power cord, or must I buy one separately?
The adapter ships with a power cord, though overseas purchases may exclude it. The barrel connector is 5.5 mm outer by 2.1 mm inner.
Should I choose this 30W model or a different wattage for a device rated 12V 2.5A?
Select this 30 W unit when your device requires 12 V at up to 2.5 A; a lower-wattage supply would not meet the current demand.
More in AC Adapters & Power Bricks





