OWC has started sales of its new DAS device that can also serve as a Thunderbolt 3 dock. The Mercury Elite Pro Dock is aimed at creative professionals with the latest Thunderbolt 3-enabled laptops that require a significant amount of storage capacity along with a set of traditional interfaces, including USB 3.0 Type-A, DisplayPort, GbE, and an SD card reader.

OWC is a well-known name in the Mac world as for years the company made accessories and upgrades for Apple’s computers. Since modern MacBooks cannot be upgraded, the company had to refocus to docks and now moves forward with its Mercury Elite Pro Dock that also serves as a DAS.

The OWC Mercury Elite Pro Dock is based on Intel’s JHL6540 controller and can be daisy chained with other Thunderbolt 3 devices. On the DAS side of matters, the OWC Elite Pro Dock can pack two 2.5/3.5-inch hard drives and supports RAID0, RAID 1, JBOD, and Span modes to maximize reliability (by mirroring them), double their sequential read/write speeds all the way to ~530 MB/s in case of two 14 TB HDDs (by striping them), or just use them as two separate hard drives or one big drive. RAID is enabled by an ASMedia controller and its mode can be manually switched using a special switch on the back.

OWC plans to offer its Mercury Elite Pro Dock in multiple versions to hit different price and capacity points. All the SKUs will come with two hard drives and offer a 4 TB, 6 TB, 8 TB, 12 TB, 16 TB, 20 TB, 24 TB, and 28 TB capacity.

On the dock side of things, the devices has a GbE port (Intel I210), two USB 3.1 Gen 1 Type-A connectors (Fresco Logic FL1100EX), a DisplayPort 1.2 output, and an SD Card reader (Genesis Logic GL-3227). The OWC Elite Pro Dock can output up to 120 W of power and therefore can power a laptop as well as charge USB devices at the same time.

The OWC Mercury Elite Pro Dock
  General Specifications
Number of Bays 2 bays for 2.5" or 3.5" HDDs
HDD Interface SATA 6 Gbps
HDDs Used Seagate or Toshiba HDDs
Capacities Up to 28 TB
RAID 0/1/JBOD/Span
RAID0 Up to ~530 MB/s (depends on HDD)
RAID1 depends on HDD
Thunderbolt 3 Controller Intel JHL6540
RAID Controller ASMedia controller
GbE Controller Intel I210
USB 3.0 Controller Fresco Logic FL1100EX
Media Card Reader Controller Genesis Logic GL-3227
Ports 2 × Thunderbolt 3
2 × USB 3.0 Type-A
1 × DisplayPort 1.2
1 × SD card reader
1 × GbE
Power Input 100-240V, 50-60Hz
Power Output +12V, 10A
Dimensions Height: 5.8 inches | 147 mm
Length: 9.4 inches | 238 mm
Width: 3.3 inches | 85 mm
Cables Included ?
Software OWC Dock Ejector
Price (MSRP) $320 for DIY kit
$520-$1400 for Drives Included

OWC’s Mercury Elite Pro Dock can be acquired as a DIY kit without any hard drives inside for $319.99 or as a ready-to-go product with two HDDs in RAID 0 inside. The cheapest 4 TB version costs $519.99, whereas the highest-end 28 TB model is priced at $1,399.99. Interestingly, but OWC does not commit to a particular hard drive model or even a manufacturer and ships its device with either Seagate or Toshiba HDDs inside.

Related Reading

Source: OWC

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  • branflake30 - Tuesday, October 15, 2019 - link

    This looks exactly like the Akitio Thunder3 Raid Station (Which OWC bough last year?)
  • genzai - Tuesday, October 15, 2019 - link

    yep. this is a straight rebrand of the akitio unit. But actually If the 120w PD is true, they apparently have re-vamped the power circuitry at least- as I'm quite sure the original RAID Station had little if any PD.
  • questionlp - Tuesday, October 15, 2019 - link

    The original one only provided 27W of PD, which would works to charge a MBP while not in use or at idle.
  • SharpEars - Tuesday, October 15, 2019 - link

    No NVMe support=no sale.
  • danielfranklin - Tuesday, October 15, 2019 - link

    This is for video storage, it would have doubled the price.
    Daisy chain an NVME disk off the back :P
  • CharonPDX - Tuesday, October 15, 2019 - link

    That's the exact opposite purpose of this device. It supports up to 28 TB of storage in its maximum configuration. 28 TB of NVMe would cost tens of thousands of dollars, not a little over one thousand.
  • HideOut - Monday, October 21, 2019 - link

    Not what he meant. What he meant was some NAS type devices have an NVMe or two slot for cache'ing purposes. Allows you to move some files at much faster speeds while the mechanical drives catch up.
  • chx1975 - Wednesday, October 16, 2019 - link

    It daisy chains, add an OWC Express 4M2 to taste.
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  • umano - Monday, October 21, 2019 - link

    I would love an OWC Express 4M2 with 10gbe

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