63Y1703 - Lenovo 2-Slot DDR3 RAM System Board (Motherboard) Socket-989 for ThinkPad T420 / T420i

Technical Specifications:
- Form factor: Mobile
- Processor socket: Socket G2
- Chipset: Intel QM67 Express
- Memory type: DDR3 SDRAM
- Number of memory slots: 2
- Maximum memory: 8 GB
- Graphics controller: Intel HD Graphics 3000
- Audio controller: High Definition Audio
- Ethernet controller: Intel 82579LM Gigabit Network Connection
- Expansion slots: 1 x ExpressCard/34, 1 x PCI Express Mini Card
- USB ports: 3 x USB 2.0
- Video ports: 1 x VGA, 1 x DisplayPort

Helpful Notes:
- This motherboard is compatible only with the ThinkPad T420 and T420i models.
- Upgrading the RAM on this motherboard can significantly improve the performance of your laptop.
- This motherboard is a great replacement option if your current one is damaged or not functioning properly.