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Diglloyd Recommended
Enhancement Package for iMac (late 2015)

Mac / Thunderbolt
OWC Value Bundle
Recommended for Photographers
Enchance your workflow with the perfect configuration
Recommended peripherals are: 64GB memory (set and forget, plenty even for large jobs); The Thunderbay 4 RAID-5 edition (suggestion: configure as three RAID-5 TB partitions); and the Thunderbolt 2 Dock (extra USB ports on their own bus). Tie it all together with a premium OWC Thunderbolt cable and you get the perfect package for supercharging your workflow.
Four modules of OWC's high performance 16GB 1866MHz RAM will make a fast job of any project. And OWC Memory for iMac (Late 2015) fully meets Apple's specifications with special attention to proper thermal specifications, so you can be sure you are getting the highest quality RAM for your iMac.
ThunderBay 4 RAID 5 edition
ThunderBay 4 is the four-bay production drive powerful enough to create workflows without limitations. With support for RAID 0, 1, 4, 5 and 1+0, and up to 790MB/s, you'll transform progress bars into progress.

Enjoy the flexibility of personally customizing any combination of drives for exhilarating performance with the SoftRAID engine. Extensive health monitoring for advance warning of imminent drive failure, prompt drive-status email notifications, and fast rebuild capabilities ensure the highest level of protection for your crucial data.
Thunderbolt 2 Dock
12 Ports of phenomenal flexibility, all united to your Mac with just one lightning-fast Thunderbolt 2 cable. OWC Thunderbolt 2 Dock is the new foundation for your perfect workspace. Awesome performance meets incredible connectivity, the OWC Thunderbolt 2 Dock offers the ultimate in convenience and flexibility to streamline any workflow. With just one Thunderbolt cable, connect up to five USB 3.0 devices, Gigabit Ethernet, a FireWire device, HDMI, audio in, and audio out.
Premium Cables for Optimum Connections
OWC 1 meter premium Thunderbolt cables are manufactured to the highest standard and designed to deliver the incredible power of Thunderbolt technology. Liberate your workflow with data transfer speeds up to 20Gb/s, and experience the high performance capabilities of your Thunderbolt-equipped devices.

64.0 GB OWC Memory Upgrade Kit Specifications:

OWC Part Number

  • OWC1867DDR3S64S


  • (4) 16 GB (16384 MB)


  • 204-pin DDR3 SO-DIMM

Data Rate

  • 1866 MHz


  • 14.9 GB/s

Memory Rank

  • Dual Rank Non Parity

OWC ThunderBay 4 RAID 5 Edition Specifications:

OWC Part Number

  • OWCTB2SRT32.0S


  • (2) Thunderbolt 20Gb/s

Standard Drive(s)*

  • 8.0TB HGST Ultrastar He8 at 7,200 RPM with 128MB data buffer
  • 1GB = 1,000,000,000 bytes. Total accessible capacity varies depending upon operating environment (typically 5-10% less). The actual total capacity will depend on your own defined file settings and preferences.
  • *OWC reserves the right to replace or upgrade to equivalent or better components.


  • Power Supply
    • Internal UL-listed, universal auto-switching
    • AC input: 100 ~ 240V, 50-60Hz
    • DC output: 12V, 16.66A

RAID Modes Supported

  • Software
  • RAID 0, 1, 4, 5, 10, Span, Independent

Initial Configuration

  • Pre-formatted for SoftRAID
  • RAID 5
  • 4 x 8.0TB HGST Ultrastar He8 Hard Disk Drives

Operating Environment

  • Temperature (°F) 41° — 107°
  • Temperature (°C) 5° — 42°


  • Height: 6.9 in (17.7 cm)
  • Width: 5.3 in (13.5 cm)
  • Length: 9.7 in (24.5 cm)

Weight (Without Accessories)

  • 8.6 lbs (3.9kg)


OWC Thunderbolt 2 Dock Specifications:

OWC Part Number



  • (2) Thunderbolt 20Gb/s

Device Ports

  • (3) USB 3.0 Standard-A
  • (2) USB 3.0 Standard-A high power
  • (1) FireWire 800
  • (1) HDMI 1.4b
  • (1) Gigabit Ethernet
  • (1) 3.5mm Mono Audio Input
  • (1) 3.5mm Stereo Audio Output

Display Support

  • DisplayPort 1.2 with support for up to 4K/60Hz
  • HDMI 1.4b with support for up to 4K/30Hz
  • Note
    • Dual monitor support requires the use of at least one Thunderbolt display.


  • Power Supply
    • External UL-listed, universal auto-switching
    • AC input: 100 ~ 240V, 50-60Hz
    • DC output: 12V, 6.0A

Operating Environment

  • Temperature (°F) 41° — 107°
  • Temperature (°C) 5° — 42°


  • Height: 1.0 in (2.5 cm)
  • Width: 9.1 in (23.0 cm)
  • Length: 3.5 in (8.9 cm)

Weight (without accessories)

  • 13.6 oz (386 g)


OWC Blue 1M Premium Thunderbolt Cable Specifications:

OWC Part Number



  • Active Electrical (copper)


  • 1 meter


  • Blue

Power Transmission

  • 10 W




SoftRAID 5
OWC has partnered with SoftRAID to bring software RAID 5 to the Mac. SoftRAID combines advanced RAID modes, fast performance, monitoring, e-mail notification, and fast rebuild capabilities that only software RAID can deliver. ThunderBay 4 models with drives come preconfigured in RAID 5, and are plug and play ready with OS X 10.9 or later. Advanced features such as drive notification and monitoring require SoftRAID installation.
OWC Diglloyd Recommended Enhancement Package for iMac (late 2015) Mfr P/N: DIGBNIL15Y OWC SKU: OWCDIGBNIL15Y Diglloyd recommended photography workflow upgrade package for iMac (late 2015)
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