iMac Intel 21.5" and 27" (Late 2009-Mid 2010) SSD Upgrade Bundle - iFixit Store
Identify the ports on your Mac - Apple Support
Mac Pro redesign mockups - 9to5Mac
2009 Mac Pro 5,1 12-Core 3.46GHz 64GB RAM 256GB PCIe SSD R9 280x WiFi USB 3.0 | eBay
LaCie Will Bring USB 3.0 To Your Mac Even If Apple Won't | Cult of Mac
Custom Front USB 3.0 PCB | MacRumors Forums
USB 3, USB 4, Thunderbolt, & USB-C — everything you need to know | AppleInsider
Identify the ports on your Mac - Apple Support
Adding USB3.0 to late 2009 iMac (11,1) | MacRumors Forums
Adding USB3.0 to late 2009 iMac (11,1) | MacRumors Forums
The Definitive Classic Mac Pro (2006-2012) Upgrade Guide
Mac Pro Usb Card for sale | eBay
2009,2010,2012 Mac Pro 3.33 GHz Six Core 32-nm Xeon x5680 Westmere processor 5,1 | eBay
Mac Pro "Quad Core" 2.66 (2009/Nehalem) Specs (Early 2009, MB871LL/A, MacPro4,1, A1289, 2314): EveryMac.com
OWC Turnkey Upgrade Program for Apple Mac Pro: High-Performance Upgrade Options
What are the differences between the "Early 2009/Nehalem" Mac Pro models?: EveryMac.com
Mac Pro 2009 – Part XIV | Photographs, Photographers and Photography
The Definitive Classic Mac Pro (2006-2012) Upgrade Guide
Retro Review: 2009 Mac Pro in 2022 | iMore
Mac Pro 2009 – Part XIV | Photographs, Photographers and Photography
