Mac Pro 4,1 Dual CPU Processor Board Complete 2009 Apple 630-9402
MacPro 4,1 2009 8-Core Dual 2.66 GHz CPU Tray Processor Board Complete Apple | eBay
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![Single & Dual Processor tray for Apple Mac Pro A1289 4,1 & 5,1 [year 2009 -2012], Electronics, Computers, Desktops on Carousell](https://media.karousell.com/media/photos/products/2021/10/11/single__dual_processor_tray_fo_1633969058_1f551891 "Single & Dual Processor tray for Apple Mac Pro A1289 4,1 & 5,1 [year 2009 -2012], Electronics, Computers, Desktops on Carousell")
Single & Dual Processor tray for Apple Mac Pro A1289 4,1 & 5,1 [year 2009 -2012], Electronics, Computers, Desktops on Carousell
Upgrading The Processors On My Early 2009 Mac Pro At A Bargain Price | ErikNaso.com
mac pro 4,1 (5,1 updated) to dual proc tray | MacRumors Forums
The differences between the 4,1 and 5,1 Mac Pro - The House of Moth
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2009 Mac Pro 4,1->5,1 CPU Tray with 12-Core 3.46GHz Xeon and 96GB RAM | eBay
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6-Core Apple Mac Pro CPU Tray Upgrade 4-Core 2.66GHz 2009 2010 4,1 5,1 Westmere | eBay
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The differences between the 4,1 and 5,1 Mac Pro - The House of Moth
