16JCH - Dell System Board (Motherboard) for OptiPlex 990

Here are 12 technical specs for the Dell System Board for OptiPlex 990:

1. Chipset: Intel Q67 Express
2. Processor socket: LGA 1155
3. Memory type: DDR3 SDRAM
4. Maximum memory: 16 GB
5. Expansion slots: 1x PCI, 1x PCIe x16, 1x PCIe x16 (wired x4), 1x PCIe x1
6. Integrated graphics: Intel HD Graphics 2000/3000
7. Audio: Integrated Realtek ALC269Q High Definition Audio
8. Network: Integrated Intel 82579LM Ethernet LAN 10/100/1000
9. USB ports: 10x USB 2.0 (4 front, 6 rear)
10. SATA ports: 4x SATA 3.0 Gb/s
11. Form factor: Micro-ATX
12. Power connectors: 24-pin ATX main power, 4-pin ATX12V power

Helpful notes:
1. This motherboard is compatible with Intel Core i3, i5, and i7 processors.
2. It supports dual-channel memory for better performance.
3. The integrated graphics can support up to two displays simultaneously.