Replacement Keyboard – Backlight Type & Compatibility Guide
Asus ROG Zephyrus S17 GX703HR GX703HS GX703BE backlit US keyboard (Model: GX703) is a replacement keyboard designed for laptop systems. The backlight type and interface (pin count) are critical – keyboards come in non‑backlit, single‑color (white/blue/red), rainbow (color‑cycling), and true RGB (zone‑controlled or per‑key) variants. Using the wrong backlight type or pin configuration will result in non‑functional backlight or keyboard failure.
Technical Specifications:
- Part Number: GX703
- SKU: LT-10028341
- Backlit: backlit
- Product Status: Brand New
- Warranty: 90‑day replacement
Compatible Systems (reference):
Asus ROG Zephyrus S17 GX703 Series
Asus ROG Zephyrus S17 GX703H Series
Asus ROG Zephyrus S17 GX703HM Series
Asus ROG Zephyrus S17 GX703HM-KF001R
Asus ROG Zephyrus S17 GX703HR Series
Asus ROG Zephyrus S17 GX703HR-KF051R
Asus ROG Zephyrus S17 GX703HS Series
Asus ROG Zephyrus S17 GX703HS-KF004R
Backlight Types – What You Need to Know:
- Non‑backlit (Standard) – no LEDs; cheapest, lowest power.
- Single‑color (White/Blue/Red) – all keys light up one color. Simple 2‑wire or 3‑wire connection.
- Rainbow (Color‑cycling) – automatically cycles through colors; no software control. Usually 4‑wire.
- Full‑zone RGB – all keys change color together via software (e.g., Alienware, MSI). Requires 5‑pin or 6‑pin connector and dedicated controller.
- 4‑zone RGB – keyboard divided into 4 zones, each independently controllable. Common in mid‑range gaming laptops.
- Per‑key RGB – each key has its own LED, full programmability. Highest complexity, typically 6‑pin or more.
Pin Count & Interface – Why It Matters:
- 2‑pin – basic power; no data communication. Used for non‑backlit or simple single‑color (constant on).
- 3‑pin – adds a speed/control line (often for brightness adjustment via voltage).
- 4‑pin – typically used for rainbow (color‑cycle) or basic RGB; includes data line for color commands.
- 5‑pin / 6‑pin – required for addressable RGB (zone or per‑key), with separate clock and data lines.
- Pinout differs by brand – even with the same pin count, the pin assignments (e.g., power, ground, data) are not universal. Always match the exact specification for your laptop model.
How to Identify Your Keyboard's Backlight & Pinout:
- Physical inspection – remove the keyboard (if possible) and check the ribbon cable connector. Count the metal contacts (pins) on the cable.
- Check the original keyboard's sticker – often lists the backlight type (e.g., “RGB”, “WLED”) and pin count.
- Use software – if the keyboard is working, use the manufacturer's control software (e.g., Alienware Command Center, MSI Dragon Center) to see what backlight features are available.
- Search online – look up your laptop model + “keyboard replacement” to see what others have used.
- BIOS/UEFI – some laptops show backlight settings in the BIOS, which can hint at the supported type.
Important Compatibility Note:
- A non‑backlit keyboard will work in a backlit‑capable laptop (backlight simply won't function).
- A backlit keyboard installed in a non‑backlit laptop will not light up – the motherboard lacks the necessary circuitry.
- RGB keyboards from different brands are not interchangeable – even if the connector looks the same, the control protocol (e.g., Razer Chroma, ASUS Aura) differs.
- Pin count must match exactly – a 4‑pin keyboard cannot be used on a 5‑pin header without an adapter (rarely available).
Still not sure which keyboard fits? Send us a clear photo of your original keyboard's ribbon cable connector (showing the contacts) and the back side of the keyboard – we'll identify the correct backlight type and pin count for you.
