No Thunderbolt on Mac Pros?

Question

We just bought 4 new Mac Pro towers...like $20,000...and the 4TB external Thunderbolt RAID unit (for video editing work mostly)
Now we find out the Mac Pro's don't have thunderbolt? Really? There is no adaprter card or anything?
You simply CANNOT use thunderbolt on a Mac Pro?!
I guess Apple is saying Thunderbolt isn't for pros...just like FCPX

Answer 1

About Thunderbolt
http://docs.info.apple.com/article.html?path=Mac/10.7/en/mh35952.html
https://www.apple.com/thunderbolt/
Macs that can be used with the Thunderbolt Displayhttp://support.apple.com/kb/HT4941
Technical Specifications
https://support.apple.com/kb/SP642
Promise Pegasus R6 Thunderbolt Performance
High-Speed I/O Performance Up to 800 megabytes per second :-(
Anandtech (2/2011): Thunderbolt already faces competition from 4.8 Gbps USB 3.0
How it works:
http://www.intel.com/content/www/us/en/io/thunderbolt/thunderbolt-technology-dev eloper.html
http://www.anandtech.com/show/4194/intels-codename-lightpeak-launches-as-thunder bolt
https://en.wikipedia.org/wiki/Intel_Thunderbolt
10 Gbit/s Thunderbolt bandwidth per channel
Products Affected
Mac mini (Mid 2011), Mac mini Server (Mid 2011), MacBook Air (11-inch, Mid 2011), MacBook Air (13-inch, Mid 2011), MacBook Pro (13-inch, Early 2011), MacBook Pro (15-inch, Early 2011), MacBook Pro (17-inch, Early 2011), iMac (21.5-inch, Mid 2011), iMac (27-inch, Mid 2011)
The latest updates available are:
For Mac OS X Lion, build 11C74 and Thunderbolt Software Update 1.1.
For MacBook Pro (Early 2011) and iMac (Mid 2011) running Snow Leopard: Mac OS X v10.6.8 build 10K540 and Thunderbolt Software Update 1.1 (Snow Leopard).
The latest updates available are:
Thunderbolt Firmware for the Mac: Thunderbolt Firmware Update.
Thunderbolt Firmware for the display: Thunderbolt Display Firmware Update.
Using Thunderbolt with Boot Camp and Windows 7
https://support.apple.com/kb/HT4617
Every other product has a support page (www.apple.com/support/product) except this.
http://www.apple.com/support/thunderbolt
- which would usually where I would look for all support links and articles.
So just start: https://www.apple.com/thunderbolt/
ThunderLink is an expansion adapter for the ThunderBolt computer bus interface, and adds support for the SAS, SATA, fibre optic and ethernet interfaces. The adapter can support throughput speeds of up to 10Gb/s[1].
http://www.syntechsa.co.za/atto-thunderlink-adapters/
PCI Express 4.0  On November 29, 2011, PCI-SIG has announced to proceed to PCI Express 4.0 featuring 16 GT/s, still on copper technology. Additionally, active and idle power optimizations are to be investigated. Final specifications are expected to be released in 2014/2015.[25]
https://en.wikipedia.org/wiki/PCI_Express#External_PCIe_cards
Apple Thunderbolt Displays, including the stand-alone display as well as the Thunderbolt iMacs, cut compatibilities with all previous standards, including VGA, DVI, and DisplayPort.[2] As such, they cannot be connected to computers lacking a Thunderbolt port, including pre-2011 Macs and the vast majority of Windows PCs.