Part No: 42W8127 - IBM System Board For Thinkpad T400

Compatibility: IBM ThinkPad T400
Processor Socket: LGA 478 (supports Intel Core 2 Duo processors)
Chipset: Intel GM45
Memory Slots:
Supports up to 2 DIMM slots
Maximum Memory: 8GB DDR3 SDRAM (supports DDR3 1066/800 MHz)
Integrated Graphics: Intel Graphics Media Accelerator 4500MHD
Audio: Integrated audio through Conexant HD audio codec
Networking: Integrated Ethernet and Wi-Fi options (depending on specific configurations)
Storage Interfaces:
SATA connectors for hard drives and SSDs
mSATA connector for additional storage options (in specific models)