Based on this product's specifications, here are some alternatives and similar models
Keyboard Dell Alienware M14X UI US KB314096 — Replacement laptop keyboard, US layout
Summary description:
Replacement keyboard compatible with Dell Alienware M14X model, OEM part KB314096. US (QWERTY) layout designed for direct swap in the laptop chassis. Ideal for repairing or replacing a damaged or non-functioning keyboard to restore full typing and gaming functionality. Simple installation when used with appropriate tools and guides.