ASUS ROG Zephyrus Duo 15 SE 15.6" (1TB SSD, AMD Ryzen 9, 3.30 GHz, 32GB)...

Condition Note: The laptop works perfectly overall. However, when the main screen is set to 120Hz, faint black lines appear across the display (as shown in the images). At 60Hz, the screen functions normally with no issues. The secondary touchscreen (ScreenPad Plus) is fully functional with no display problems. No other faults have been observed — everything else works as expected. Charger is also included. Nothing else.

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