Power adapter MEAN WELL GST40A09-P1J, 40 W, 9 V output, 90–264 V input, RoHS, 50×125 mm

MEAN WELL GST40A09-P1J is an AC-DC industrial desktop adapter providing 9 V DC at up to 4.45 A (40 W) from a wide 90–264 V AC input range. The adapter uses a 3-pole IEC320-C14 AC inlet and is RoHS compliant. Its compact housing measures approximately 50 × 125 mm and the unit weighs about 296.5 g, making it suitable for powering electronic devices and small appliances in professional and industrial desktop environments.

Advantages

The adapter delivers a stable 9 V DC output at 4.45 A with a maximum output power of 40 W, supports universal AC input (90–264 V) for global use, and includes a standard IEC320-C14 inlet for compatibility with common AC cords. RoHS compliance reduces hazardous substances, and the compact 50×125 mm form factor saves space on workbenches and in equipment racks.

Suitable for

• Powering desktop electronic devices and small appliances
• Industrial and office equipment requiring 9 V DC, up to 4.45 A
• Applications where a standard IEC320-C14 inlet is preferred

Key specifications

• Model: MEAN WELL GST40A09-P1J
• Output: 9 V DC, 4.45 A (40 W)
• Input: 90–264 V AC
• AC inlet: 3-pole IEC320-C14
• Compliance: RoHS
• Dimensions: 50 × 125 mm (W × D)
• Weight: ~296.5 g
• Pack quantity: 40 pcs
• Brand: mean well
• MPN: GST40A09-P1J
• EAN: 4021087028554

How to use

Connect a suitable IEC power cord to the adapter's IEC320-C14 inlet and plug the cord into a compatible AC outlet within the specified 90–264 V range. Attach the adapter's DC output cable to the device requiring 9 V DC, ensuring correct polarity and secure connection. Verify that the device's required current does not exceed 4.45 A. Place the adapter on a stable, ventilated surface during operation to avoid overheating.

Recommendations

Use a mains lead rated for your local voltage and protective grounding where applicable. Do not block ventilation openings; avoid exposing the adapter to moisture, extreme temperatures, or mechanical shock. Verify device compatibility with 9 V DC and maximum 4.45 A before connecting.