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Six Drive Bays
Thunderbolt 3, configure as single drives or as RAID-5, RAID-4, RAID-0, RAID-10 with RAID edition.
Up to 84 Terabytes, up to 1500 MB/sec!
iMac 5K (Late 2015): Flash Drive (SSD)
Related: 4K and 5K displays, computer display, iMac, iMac 5K, Macs, SSD
Save money on 32GB or 64GB OWC memory (about $400 savings vs Apple!)
It’s worth paying for the Apple 1TB flash drive—wow!
Sustained transfer speed, large transfers
The late 2015 iMac 5K Retina has a stunningly fast flash drive (SSD) that trounces the flash drive in the 2014 iMac 5K.
2013 Mac Pro: writes at ~930 MiB/sec and reads at ~1180 MiB/sec.
(early 2014 build, 2015 builds may be faster)
2014 iMac 5K: writes at ~716 MiB/sec and reads at ~766 MiB/sec.
2015 iMac 5K: writes at ~1520 MiB/sec and reads at ~2080 MiB/sec.
One reader reports that the 2013 Mac Pro built in 2015 may have a faster flash drive than shown here—this seems likely but MPG has not confirmed it.
Sustained transfer speed vs transfer size
Transfer speed with 32K transfers is about 750 MB/sec, which is outstanding, and well beyond the bus speed of any SATA 6G SSD. Wow! It is also very important for many tasks which make small transfers (including file copying). But it gets even better: speed picks up even more with larger transfers.
$849 SAVE $300 = 26.0% Apple 12.9" iPad Pro (Mid 2017, 512GB, Wi-Fi Only, Gold) in Electronics: iPads and Tablets
$3099 SAVE $400 = 11.0% Apple 15.4" MacBook Pro with Touch Bar (Mid 2018, Space Gray) in Computers: Apple Macs
$15 SAVE $10 = 40.0% Joby GripTight XL Gorillapod Stand for Smartphones (Black/Charco… in Accessories: Tripods and Support
$4147 SAVE $100 = 2.0% Nikon Z 7 Mirrorless with 24-70mm Lens and FTZ Adapter Kit in Cameras: Mirrorless
$699 SAVE $100 = 12.0% $19 FREE ITEMS Olympus OM-D E-M10 Mark III Mirrorless with 14-42mm EZ in Cameras: Mirrorless
$598 SAVE $400 = 40.0% $19 FREE ITEMS Panasonic Lumix DMC-GX85 Mirrorless with 12-32mm and 45-150mm Le… in Cameras: Mirrorless