Echo Express, Echo Express II, Echo Express Pro
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FAQ (7)
IDArticle TitlePost Date
603 Which HDMI adapter should I use to connect an HDMI monitor to an Echo Express Thunderbolt PCIe Expansion Chassis' Thunderbolt port?Mar-19-15
661 I'm using OWC Mercury Extreme Pro 6G SSDs with a Tempo SSD or Tempo SSD Pro adapter in a Thunderbolt Expansion Chassis and the system hangs after waking from sleep.Oct-01-16
663 Is the NVIDIA Quadro 4000 for Mac compatible with Echo Express Thunderbolt Expansion Chassis?Aug-29-12
675 I installed an LSI 9200 series SAS RAID card in a Thunderbold expansion chassis and now the LSI card doesn't work.May-22-19
714 Do GPU cards work over Thunderbolt on Windows?Nov-02-12
717 Is the Red Rocket as fast in a Sonnet Echo Express Pro chassis as in a Magma Express Box 3T?Oct-13-12
731 How fast will an SSD be in an Echo Express Thunderbolt chassis using the Tempo SSD, SSD Pro or SSD Pro Plus?Dec-30-17
We have performance comparison information on our web site. Check the performance tab on Tempo SSD or Tempo SSD Pro product page. This will give you a pretty good idea.

These numbers can be generalized. For one SSD you can infer from the table.
Read speed over Thunderbolt = 90% of rated read speed in a Mac Pro
Write speed over Thunderbolt = 80% of rated write speed in a Mac Pro.

Go to the manufacturer's SSD product page, check the speed rating and multiply by 90% and 80% for read and write, respectively, for performance over Thunderbolt.

For two SSDs in a RAID 0 in the Tempo SSD Pro using the original Thunderbolt 1 bandwidth limit, the speeds get capped at about 700MB/sec read and 560MB/sec write. There is no bandwidth limit for a two-SSD RAID 0 under Thunderbolt 2 or Thunderbolt 3.