Genuine Apple PowerBook AC Adapter, model M1910Z/A. This original Apple power supply was designed for the PowerBook 520, 520c, 540, and 540c series from the early 1990s. A perfect piece for collectors of vintage Apple hardware or anyone restoring a classic Macintosh notebook. Details: Model: M1910Z/A Compatible with: PowerBook 520, 520c, 540, 540c Output: 24V DC, 1.5A Original Apple logo on casing Includes original cable and connector Condition: new old stock box opened, item never used Condition: The adapter is brand new and unused. The box has only been opened for inspection. Collector’s note: An increasingly rare new old stock Apple accessory, ideal for completing a PowerBook collection, museum display, or vintage Apple showcase.