AC Adapter, 90W, 19.5V, 3

Dell MK947 is a mains adapter for powering a compatible laptop at a desk or wherever a mains socket is available. It converts AC input to DC output and can serve as a replacement when the laptop requires the same electrical ratings and connector.

The adapter provides up to 90 W at 19.5 V DC and 4.62 A. Its black housing has a C6 socket for the mains connection, and the specified input range is 100–240 V AC. These ratings describe the power it supplies and the mains voltage it accepts.

For connection to the laptop, MK947 has a 7.4 × 5.0 mm output plug with a centre pin. Checking this plug alongside the electrical requirements helps identify whether it matches a particular laptop; a similar power rating alone does not establish compatibility.

The adapter supplies external power for laptop use at a desk or another location with mains access. Package contents: a power cable is not included.