A7819_KDY - Genuine Samsung 78W 19V 4.19A 6.5x4.0mm Tip AC Adapter Power Supply for Curved Monitor or Ultrawide (Includes AC Power Cable)
The A7819_KDY is a 78W 19V AC/DC power adapter used on high-end curved gaming and ultrawide monitors. It delivers a regulated 19V 4.19A output through a round barrel connector with center pin, making it ideal as a direct replacement for the 78W bricks used with popular 27" and 34" curved displays and 28" high-refresh gaming monitors in the same family.
Description
This adapter is designed for continuous use with 19V devices up to 78W, including 27" curved gaming monitors (FG70/FG73 series), 34" CF791 ultrawide models, and select 28" G7-style monitors. It supports 100–240V auto-ranging input for worldwide use and uses the standard Samsung round DC plug with center pin found on these models.
It is suitable as a direct replacement for failed or missing 78W adapters where the original part label shows A7819_KDY, A7819_KDYW, BN44-00888A, or BN44-00888B.
Technical Specifications
- Model family: A7819_KDY 19V external AC/DC adapter
- Output voltage: 19V DC
- Output current: 4.19A
- Maximum power: 78W
- Connector type: Round barrel plug with center pin
- Connector size: Approx. 6.5mm outer barrel, center-pin plug (Samsung 19V monitor family)
- Polarity: Center positive
- Input voltage: 100–240V AC, 50–60Hz (auto-ranging)
- Typical applications: 27" curved gaming monitors, 34" curved ultrawide monitors, 28" gaming/graphic monitors requiring 19V 78W
Interchangeable / Replacement Part Numbers
A7819_KDY, A7819-KDY, A7819KDY, A7819_KDYW, A7819-KDYW, A7819KDYW, BN44-00888A, BN4400888A, BN44-00888B, BN4400888B
(All of the above are 19V 4.19A 78W adapters in the same family, with the same round center-pin connector.)
Confirmed Compatibility
Please note that the following list is not exhaustive. Compatibility depends on your system's specific configuration. It's essential to verify compatibility with your system or enclosure manufacturer prior to installation.
✔ 27" Curved Gaming Monitors (FG70 / FG73 series):
LC27FG70F, LC27FG70FQEXXY, LC27FG73F, LC27FG73FQ, LC27FG73FQNXZA, C27FG70F, C27FG73FQ, C27FG73FQC
✔ 34" Curved Ultrawide CF791 Series:
C34F791, C34F791W, 34F791W, 34F791WQ,
C34F791WQ, C34F791WQU, C34F791WQN,
LC34F791WQNXZA, LC34F791WQUXEN,
CF791, MONITOR CF791
✔ 28" High-Resolution / Gaming Monitors (G7 / AG7 family):
S28AG700, S28AG700NC, S28AG702NI, LS28BG702ENXGO
✔ Other Models Using 19V 4.19A 78W A7819_KDY / BN44-00888x Family:
S28AG700NC-based variants and other displays originally supplied with A7819_KDY, A7819_KDYW, BN44-00888A, or BN44-00888B 78W 19V adapters
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