661-8124 - Apple Intel i7 3.5GHz CPU 4GB GDDR Logic Board (Motherboard) for iMac 27

1. Processor Type: Intel Core i7
2. Processor Speed: 3.5 GHz
3. Graphics Card: AMD Radeon R9 M290X
4. Graphics Memory: 4GB GDDR5
5. Compatible Devices: iMac 27
6. Socket Type: LGA 1150
7. Number of Cores: Quad-Core
8. Maximum Supported Memory: 32 GB
9. Memory Type: DDR3 SDRAM
10. Expansion Slots: Mini PCIe, mSATA
11. Input/Output Ports: Thunderbolt, USB 3.0, Ethernet, FireWire
12. Audio: Stereo speakers, microphone, headphone jack

Note 1: This logic board is compatible with iMac 27-inch models released in late 2013 and mid-2014.
Note 2: The AMD Radeon R9 M290X graphics card provides high-quality visuals for gaming and video editing.
Note 3: The Thunderbolt port allows for high-speed data transfer and can support up to six devices daisy-chained together.