Dell 12V3A1T 12 V 36 W power adapter
Converts 100 to 240 V AC to 12 V DC at up to 3 A and 36 W with a 5.5 mm barrel connector and ETL-listed protection
- Adapter typeUSB C Charger
- Cable length5 in (12.7 cm)
- First connectorBarrel Connector
- Second connectorBarrel Connector
- Connector typeMale
- Units per package1
- Delivers steady 12 V DC at up to 3 A for reliable device operation
- Accepts 100–240 V AC input so it works worldwide without a voltage converter
- ETL listed with over-voltage, over-current, short-circuit and over-temperature protection
- Includes 6.2 ft cord and screw-terminal DC connector for solder-free wiring
- Compact 100 g design fits tight spaces behind monitors, cameras or LED strips
Dell 12V 3A adapter purpose
This Dell 12V3A1T adapter converts 100-240V AC mains power to 12V DC at up to 3 amps for 36 watts maximum output. It suits devices such as LED strips, CCTV cameras, routers, external hard drives or monitors that draw 3 amps or less at 12 volts.
Capacity and headroom
The unit delivers 12 volts at a maximum of 3 amps, so any load up to 36 watts runs within its rating; a 2.5 amp or 2 amp device leaves headroom while a 3 amp load uses the full capacity. Continuous operation at the 3 amp limit is supported by the ETL-listed over-voltage, over-current, short-circuit and over-temperature protections.
Barrel connector limits
A 5.5 mm outer diameter barrel plug with 2.1 mm or 2.5 mm inner diameter fits the output, polarity centre-positive. The 6.2 ft AC cord and supplied female DC screw-terminal connector allow flexible placement indoors, but the adapter is not waterproof and must not be used outdoors.
How it compares
Measured against everything we stock in AC Adapters & Power Bricks, at today’s prices. Recalculated every night.
- Price $15.99
- Cheaper than about 80% 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 | |
|---|---|
| Brand name | Dell |
| Part number | 12V3A1T |
| Product type | 9 V |
| Adapter type | USB C Charger |
| Product color | Black |
| Ports & slots | |
| First connector | Barrel Connector |
| Second connector | Barrel Connector |
| Connector type | Male |
| Size & build | |
| Cable length | 5 in (12.7 cm) |
| Product dimensions | 14.33 in W × 12.83 in H × 9.06 in D |
| Product weight | 100 g |
| In the box | |
| Units per package | 1 |
| In the box | 1 |
Questions about this item
Will the 5.5 mm barrel connector on this 12 V 36 W adapter fit my existing 5.5×2.1 mm device jack?
Yes — the supplied DC plug is 5.5 mm outer diameter with an inner diameter range of 2.1–2.5 mm, so it mates with both 5.5×2.1 mm and 5.5×2.5 mm jacks.
How can I confirm the adapter is delivering a steady 12 V 3 A after I plug it in?
The unit is ETL, FCC, CE, RoHS and CCC listed and includes over-voltage, over-current, short-circuit and over-temperature protection; a stable 12 V DC output within the rated 36 W indicates correct operation.
What exactly ships in the box and is any extra cable or tip required?
The package contains one 12 V 3 A power supply with a 6.2 ft AC cord and one screw-terminal DC female connector; no additional cables or tips are needed for standard 5.5 mm barrel devices.
More in AC Adapters & Power Bricks
