US English Backlit Keyboard for Latitude 7340 7430 7440 7640

Replacement US English (QWERTY) backlit keyboard for select Latitude laptops. This is an internal keyboard assembly designed for systems that support backlighting and uses the standard ribbon cable connections shown in the photos.

Technical Specifications

• DP/N: 0TRN4T
• Manufacturer: Lite-On
• Lite-On Part Number: SG-B8410-XUA
• Keyboard Layout: US English (QWERTY)
• Backlight: Yes
• Color: Black
• Key Style: Chiclet / island-style
• Interface: Internal ribbon cable

Interchangeable / Replacement Part Numbers

• 0TRN4T, OTRN4T, SG-B8410-XUA

✅ Confirmed Compatibility

Please note that the following list is not exhaustive. Compatibility depends on keyboard layout, backlight support, and cable orientation. It’s essential to verify compatibility with the device manufacturer.

✔️ Latitude 7340
✔️ Latitude 7430
✔️ Latitude 7440
✔️ Latitude 7640

☑️ Key Features

☑️ US English layout with dedicated function keys
☑️ Integrated backlight (requires system backlight support)
☑️ OEM-grade Lite-On manufacturing
☑️ Direct internal replacement (no programming required)

⚙️ Fit Notes

• This keyboard uses two ribbon connections (main keyboard + backlight), as shown in the photos.