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Tempo™ SSD Pro Plus
6Gb/s SATA PCIe 2.5" SSD Host Adapter

Mac / PC / PCIe / SATA / eSATA
Professional SSD Upgrade Solution
If you've been thinking about fast, bootable storage, you've read the stories and seen the reviews; SSDs are hot right now. Not only do they offer tremendous performance and easily outperform hard disk drives, they're more reliable, their prices are dropping and you can get more capacity than ever. If you've got an older Mac Pro® or Windows® desktop computer, you could just get a couple of 2.5" SSDs (plus necessary adapters) and install them in some empty drive bays (if there are any) and be done with it - but the 3Gb/s SATA interface in your computer won't support fast 6Gb/s SSDs at full speed. Sonnet engineered a great alternative - Tempo™ SSD Pro Plus. It's a fast 6Gb/s SATA PCI Express adapter card that enables you to attach readily available 2.5" SSDs and install the assembly neatly into a single PCIe slot, no cables or drivers necessary.

Unlike other PCI Express SSD cards that rely on proprietary, premium-priced SSD modules, Tempo SSD Pro Plus uses standard 2.5" SATA drives that you choose. You get to select from the widest variety of SSDs, and buy the ones that best suit your capacity and performance needs while working within your budget. Because 2.5" SSDs are readily available, you're not tied to one retailer or SSD manufacturer should you decide to upgrade to higher capacity, faster SSDs.
It's About the Performance
Tempo SSD Pro Plus is a full-length, full-height card to which you can install two SSDs; if you've got the space and need great performance, this is the card for you. This Sonnet solution also supports OS X® and Windows RAID features. The card uses a fast 6Gb/s SATA controller chipset and PCIe 2.0 x4 interface to deliver read speeds up to 960 MB/s from a pair of SSDs configured as a RAID 0 set. AHCI compliance ensures installation of the card is simple - attach your SSDs with provided screws, mount the card in an available PCIe slot, and turn on your computer - the necessary drivers are installed automatically.
Thunderbolt™ Port? Instant SSD Solution
Got a Thunderbolt connection, but no PCIe slot? Tempo SSD Pro Plus is ideal for use in Sonnet's Echo™ Express III-D desktop or Echo Express III-R rackmount Thunderbolt 2-to-PCI Express® card expansion systems, the xMac Pro Server PCIe 2.0 expansion system/4U rackmount enclosure for new Mac Pro with Thunderbolt 2 ports, or the xMac™ mini Server PCIe 2.0 expansion system/1U rackmount enclosure for Mac mini with Thunderbolt ports. Adding this card to any of these Thunderbolt expansion systems is a great way to add high-speed SSDs plus eSATA connectivity to your Mac® with Thunderbolt 2 or Thunderbolt ports!
Plus Your Outside Connection
Featuring two 6Gb/s eSATA ports and dual SATA controllers, the Tempo SSD Pro Plus enables you to connect two external storage systems with eSATA interfaces for fast transfers between them or to improve performance by creating a RAID set. Single-drive enclosures let you easily back up data, move files from one computer to another, or take advantage of a fast SSD. Many multi-drive storage systems include swappable drive trays, which are perfect for managing daily backups and multiple projects. Some systems feature integrated hardware RAID controllers that manage up to four drives and enable you to create large, protected RAID volumes, yet only a single cable is required to connect these multi-drive systems to the Tempo SSD Pro Plus. Whether you connect single- or multi-drive systems, or a combination of both, Tempo SSD Pro Plus supports them at maximum performance levels.
Extra Features
The Tempo SATA Pro Plus supports hot-swapping of external drives under OS X, and supports booting from attached drives under OS X2, and Windows38, 7, and Server 2012. It supports media readers with eSATA interfaces, such as the RED STATION REDMAG 1.8" and 2.5", and you can connect optical drives, too. Drive health monitoring is supported through S.M.A.R.T. data reporting. And, for a secure external connection, this card supports Sonnet's exclusive locking eSATA cables.

Product Specifications:

Sonnet Part Number



  • Two Internal SATA Hard Drive Bays4
  • Two eSATA ports


  • Internal - Up to 2 Devices
  • External - Up to 86 Devices

Bus Specifcations

  • PCI Express 2.09

Form Factor

  • Full Height, Full Length

External Connectivity

  • Two eSATA Ports

Internal Connectivity

  • Two SATA for 2.5" SSD or HD4

Data Transfer Rate

  • Up to 960 MB/s1 (1700 MB/s with two cards)

RAID Functionality

  • OS dependent

Drives Supported

  • SATA 6 Gb/s
  • SATA 3 Gb/s
  • SATA 1.5 Gb/s

Boot Support

  • Single SSD or up to six SSDs in a RAID 0:
    • Mac Pro 3,1 (early 2008 and newer)
    • Any Thunderbolt Mac2
  • Single SSD only:
    • Windows 7, 8, or Server 2012 PCs3

Advanced Features

  • Supports ATAPI (CD/DVD) drives
  • Supports S.M.A.R.T. status data reporting
  • Supports Spread Spectrum Clocking for compatibility with all SATA drives and for lower EMI emissions

Thunderbolt™ Support

Operating System Support

  • OS X 10.6.8+8
  • OS X Server Version 10.6.8+
  • Windows 8, Windows 7, Windows Vista®
  • Windows Server 2012, 2008 R2, 2008


  • Flash-ROM upgradeable to latest firmware version8

Agency Approvals & Compliance

  • RoHS


  • 4.7" x 7.1" x 0.8" (11.8 x 18.0 x 2.0 cm)


  • 0.45 lbs (204 g)



  1. Pair of SSDs configured as a RAID 0 set.
  2. Does not currently boot a Mac with Thunderbolt 2. Sonnet is working to identify the issue.
  3. Windows BIOS does not support booting from a RAID 0 of multiple SSDs.
  4. SSDs sold separately.
  5. Support for only 5V devices.
  6. Support for up to 8 drives requires the use of drive enclosures employing a hardware RAID controller
  7. Port multiplier support in OS X 10.8+.
  8. When upgrading to OS X 10.9 (Mavericks) you must reinstall your product's Sonnet driver software.
  9. Not compatible with PCIe 3.0 slots.
Manufacturer provided specifications for Sonnet Technologies p/n TSATA6-SSDPS-E2 UPC#: 732311010705
This product is compatible with... Learn how to find your Mac's model ID
Mac Pro
Mac Pro 12-Core (Mid 2012)
(June, 2012)
Model ID: MacPro5,1
2.4GHz, 2.66GHz, 3.06GHz
Mac Pro
Mac Pro 6-Core (Mid 2012)
(June, 2012)
Model ID: MacPro5,1
Mac Pro
Mac Pro 4-Core (Mid 2012)
(June, 2012)
Model ID: MacPro5,1
Mac Pro
Mac Pro 12-Core (Mid 2010)
(July, 2010)
Model ID: MacPro5,1
2.66GHz, 2.93GHz
Mac Pro
Mac Pro 8-Core (Mid 2010)
(July, 2010)
Model ID: MacPro5,1
Mac Pro
Mac Pro 6-Core (Mid 2010)
(July, 2010)
Model ID: MacPro5,1
Mac Pro
Mac Pro 4-Core (Mid 2010)
(July, 2010)
Model ID: MacPro5,1
2.8GHz, 3.2GHz
Mac Pro
Mac Pro 8-Core (Early 2009)
(March, 2009)
Model ID: MacPro4,1
2.26GHz, 2.66GHz, 2.93GHz
Mac Pro
Mac Pro 4-Core (Early 2009)
(March, 2009)
Model ID: MacPro4,1
2.66GHz, 2.93GHz, 3.33GHz
Mac Pro
Mac Pro 8-Core (Early 2008)
(January, 2008)
Model ID: MacPro3,1
2.8GHz, 3.0GHz, 3.2GHz
Mac Pro
Mac Pro 4-Core (Early 2008)
(January, 2008)
Model ID: MacPro3,1
Mac Pro
Mac Pro 8-core (Early 2007)
(April, 2007)
Model ID: MacPro2,1
Mac Pro
Mac Pro 4-core (Mid 2006)
(August, 2006)
Model ID: MacPro1,1
2.0GHz, 2.66GHz, 3.0GHz
PC Desktop
PC running Windows, Linux or FreeBSD and available PCI-Express x4 lane or better slot
OWC Helios
OWC Mercury Helios
Thunderbolt PCIe
expansion chassis


  • Tempo SSD Pro 6Gb/s SATA Dual 2.5" SSD PCIe 2.0 Card with eSATA Ports
  • Drive mounting screws
  • SSD mounting screws
  • Documentation
Note: SSDs sold separately

Customer Ratings

Write a Review 4.8 / 5 6 out of 7 (86%) reviewers would recommend this product
Verified Buyer
Reviewer: Peyo Location: Nova Scotia, Canada Age: 55-65 Experience Level: Power User Owned Product: 1-3 months
Rating: 5/5 Excellent Purchase, fast! March 2, 2018 Excellent produit, speed of 850 Mbs on Mac Pro 2009 with two Micron SSD for a total of 4 Tbs.

I would recommend this item to a friend! Customer Videos:

Verified Buyer
Reviewer: HelloFromAtlanta Location: Atlanta, GA Age: 35-44 Experience Level: IT Professional Owned Product: 1-3 months
Rating: 5/5 This SSD card does exactly what it should! January 2, 2018 My only negative the card is exactly full-size and requires some gentle "persuasion" to maneuver into the case.

I would recommend this item to a friend! Customer Videos:

Verified Buyer Top 50 Contributor
Reviewer: joevt Location: Langley, B.C. Age: 35-44 Experience Level: Power User Owned Product: less than a month
Rating: 5/5 Excellent upgrade for old Mac Pro March 8, 2017 There are two things about this card that make it better than many other PCIe cards (note that all the speeds below are theoretical maximums except for the benchmark tests):

1) This is a PCIe x4 card (2000 MB/s In a PCIe gen 2 slot and 1000 MB/s in a PCIe gen 1 slot). Many PCIe cards are only x2 (1000 MB/s in a PCIe gen 2 slot and 500 MB/s in a PCIe gen 1 slot). However, the PCIe gen 1 slots in the Mac Pro 2008 cannot do x2, so an x2 card would only connect as x1 (250 MB/s). Max SSD speed is 600 MB/s so PCIe gen 1 x2 is a bottleneck in either case.

My Mac Pro 2008 has two gen 2 slots occupied by a graphics card and a USB 3.1 gen 2 card so I want to use this card in a gen 1 slot. That's why the x4 is important to me.

2) The card uses standard SSDs. Other PCIe cards may use proprietary blades which become useless when you want to upgrade them. An SSD can be moved to another computer with or without available PCIe slots.

Layout: The card uses a PES12T3G2 PCI Express Gen2 Switch, 4 lanes upstream (1000 MB/s in a gen 1 slot, 2000 MB/s in a gen 2 slot) and 4 lanes downstream split between two "Marvell 2-port SATA III PCIe 2.0 x2" controllers (1000 MB/s each). Each controller connects an internal SSD and an external SSD (600 MB/s each).

Therefore, for optimal software raid of two SATA devices (1200 MB/s) you would raid either two internal SSDs or two external SSDs or one internal SSD from one controller, and one external SSD from the other controller. Using two SSDs on the same controller would limit the speed to 1000 MB/s.

A raid of four SSDs (2400 MB/s) connected to this card would be limited by the controller's PCIe link speeds (1000 MB/s each) and by the PCIe slot's link speed (2000 MB/s).

Installation: This is a very long card. To install it into the top slot (Slot 4) of my Mac Pro 2008, I had to remove the fan assembly, insert the card, and then reinsert the fan assembly. The card has tabs that provide extra stability. They can be snapped off if they interfere with components on the motherboard. I had to snap off one of the tabs.

Testing: I used two 1.0TB Mercury Extreme Pro 6G SSDs. I used Disk to create a software raid of two partitions, one on each internal SSD. I used Blackmagic Speed to quickly measure the speed. With a non-raid partition, I got 416.4 MB/s Write and 496.3 MB/s Read. If the PCIe link was 500 MB/s, then that read speed would be much less, since it's impossible to get that close to the max link speed. With the raided partitions, I got 617.4 MB/s and 729.1 MB/s. The speed would be greater in a gen 2 slot since 729.1 MB/s is getting close to the 1000 MB/s limit of the gen 1 slot. The product page on Sonnet's website for the Tempo SSD Pro Plus has performance graphs that illustrate the relative performance levels of different slots.

The partitions appear in the Startup Manager (hold option during boot). This feature doesn't work with some other PCIe cards.

I have another disk with a Boot Camp partition. I was unable to boot into that. The issue may be with my other PCIe cards. Previously, I had my graphics card in slot 2 to make Boot Camp work, but that makes slot 3 unusable. I have not tried moving the graphics card with the Tempo card, since Boot Camp on my Mac Pro is no longer important to me. My graphics card is the EVGA GeForce GTX 680 Mac Edition. Other graphics cards may result in different behavior.

I would recommend this item to a friend! Customer Videos:

Verified Buyer
Reviewer: anonandon
Rating: 4/5 bootcamp dual boot drive issues, but exceptional performance November 9, 2016 It was frustrating to discover too late, that the Sonnet Tempo SSD Pro Plus, 6Gb/s SATA PCIe 2.5" SSD Host Adapter, is presently incapable of supporting dual booting twin systems running Mac/Windows on 2 drives. The research I had done prior to making my selection had not revealed this niggling flaw in the Sonnet Tempo specs set. Dual boot 6Gb SSD's was the principal attraction in my case. The drives are mounted as externals, which inhibits bootcamp capability, so I've gathered. Windows is also fussy about which internal slot address it occupies. Look out for the asterisk * on the box specs, for a qualifier note. Curiously, there are other equivalent or similar products in the marketplace that apparently have found their way past this small glitch.

However, there is no denying that the 6Gb performance upgrade is remarkable, and the addition of 2 x 6Gb eSATA PCie ports adds superior expandability via externals. Not to forget, the convenient storage expansion capacity of 2 additional drives under the hood, and amped up scratch disk read/write speeds. Very straightforward installation is another plus. Worth stating here that those gains alone were sufficent to prevent an international return and alternative/replacement order. (mid 2010 Mac Pro 5.1, overclocked 3.2GHz 6-core intel xeon)

Customer Videos:

Verified Buyer
Reviewer: Anonymous Location: Tokyo, Japan Age: Over 65 Experience Level: Power User Owned Product: less than a month
Rating: 5/5 This is a rejuvenator February 19, 2016 If you have a classic Mac Pro which is feeling age this device will bring the good days back.

I would recommend this item to a friend!

Verified Buyer
Reviewer: Anonymous Location: Southern NH/Boston Age: 55-65 Experience Level: Power User Owned Product: less than a month
Rating: 5/5 I should have ordered this one first. February 18, 2015 I would recommend this item to a friend!
Verified Buyer
Reviewer: Anonymous Location: Tampa, FL Age: 25-34 Experience Level: Power User Owned Product: less than a month
Rating: 5/5 Works great! Easy install. November 27, 2014 Used this on a 12-core Mac Pro 5,1 mid-2010. The one I received was a simple plug and play; no driver install needed. Attached 2 SSDs (one of those works as as a boot drive) and they both work flawlessly.

I would recommend this item to a friend!

Sonnet Tempo™ SSD Pro Plus
6Gb/s SATA PCIe 2.5" SSD Host Adapter
Mfr P/N: TSATA6-SSDPS-E2 OWC SKU: STITSATA6SSDPSE Add two eSATA ports and two high-performance 6Gb/s SSDs in your Mac Pro, desktop PC, or Thunderbolt PCIe expansion chassis. Sonnet Technologies 5 Year Limited Warranty
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