Apple Airport Extreme Card 802.11n for Apple Mac Pro Mb988z/A

Inateck 4 Ports PCI-E to USB 3.0 Express Card for Mac Pro (Early 2008 to 2012 Late Version) - USB 3.0 4-Port Expansion Card Desktop, No Additional Power Connection Needed

Apple Bluetooth Module Upgrade Kit - Network adapter - Bluetooth 2.0 EDR - MA687ZM/A

Apple Airport Wireless Card For Mac Pro - Network Adapter - 802.11b, 802.11a, 802.11g, 802.11n (draft) (66436H)

NewerTech AdaptaDrive 2.5" to 3.5" Drive Converter Bracket

OWC Accelsior S: PCIe to 2.5" 6Gb/s SATA SSD Host Adapter

PCIe PCI-e Power Cable for Mac G5 nVidia ATI Video Card - High Quality

Sonnet Allegro USB 3.0 PCIe 4-Port (Mac and Windows Compatible)

Inateck 2-Port PCI-E USB 3.0 Express Card, Mini PCI-E USB 3.0 Hub Controller Adapter with Internal USB 3.0 20-PIN Connector - Expand Another Two USB 3.0 Ports - No Additional Power Connection Needed

Sabrent 2.5" SSD & SATA Hard Drive to Desktop 3.5" SATA Bay Converter Mounting Kit (BK-PCBS)

DRIVESLED SMR Mac Pro Tower SSD Drive Sled 2.5 Adapter by Wegener Media