This is a general info thread for blade SSDs that can be used in the Mac Pro. This is a WikiPost so anyone with the proper credentials may edit it.
NVMe SSDs can be used as a boot drive in the MP5,1 and MP6,1 with the latest firmware installed (beginning with version 140.0.0.0.0 for MP5,1 and MP61.0120.B00 for MP6,1). The new MP7,1 support booting from an NVMe SSD when
external booting is enabled with Startup Security Utility.
Note that PCIe SSDs installed in a Mac Pro 5,1 (MP6,1 have exactly the same PCIe 2.0 limits too) are limited to ~1,500 MB/s unless installed on a PCIe switch card in slot 1 or 2 such as a HighPoint SSD7101A-1 or Amfeltec Squid that converts the Mac Pro PCIe 2.0 x16 to the PCIe 3.0 x4 needed for full throughput.
Also note that 3rd party SSDs have varying compatibility with the Mac Pro and not all listed below may be fully compatible.
macOS NVMe Support:
- Genuine Apple NVMe drives are supported beginning with macOS Yosemite 10.10.2 with the correct firmware installed. 3rd party NVMe drives with 4096 bytes/sector are supported beginning with macOS Sierra with expanded support beginning with macOS High Sierra.
- macOS High Sierra, Mojave and Catalina supports both 4KiB and 512 bytes / sector NVMe drives.
- macOS Sierra supports 4KiB / sector drives like Apple OEM and some uncommon Toshiba/OCZ/Intel/WD blades. This post on InsanelyMac lists the blades that work with Sierra and hackintoshes, please note that most of those blades don't work with a Mac Pro at all or work with 750MB/s throughput only. Don't use this list to buy blades for a Mac Pro, it's linked here for information purposes only.
- For Sierra compatibility choose an NVMe blade that supports the 4Kn disk sector format. See 4Kn section below.
- Apple supports the 1.3 NVMe standard. Any blade that need a special NVMe module/driver won't be supported; seems that's the case with Samsung 970 EVO Plus without the firmware 2B2QEXM7 and some of the Plextor blades.
- To boot from a NVMe drive, for Mac Pro 5,1 you need to upgrade BootROM to at least 140.0.0.0.0, supplied with MAS Mojave full installers since 10.14.1. 10.14.4 has 141.0.0.0.0 and 10.14.5/10.14.6 have 144.0.0.0.0. For Mac Pro 6,1 you need to upgrade BootRom to at least MP61.0120.B00 included with macOS High Sierra 10.13.0.
- High Sierra boots/works perfectly both 4KiB and 512 bytes drives if you have MP5,1 BootROM 140/141/144.0.0.0.0.
- If you install MP5,1 BootROM 140/141/144.0.0.0.0, Sierra can boot from a 4KiB / sector NVMe M.2 blade.
- You can read about it on the first posts of these two threads:
- MP5,1: What you have to do to upgrade to Mojave
- MP5,1: BootROM thread
NVMe boot support and Mac Pro year models:
Mac Pro year model: | Model Identifier: | NVMe boot support: |
2006 Mac Pro / Original Mac Pro | MP1,1 | not possible, can't run Sierra/High Sierra. Native support for PCIe AHCI blades. |
2007 Mac Pro / Mac Pro (8-Core) | MP2,1 | not possible, can't run Sierra/High Sierra. Native support for PCIe AHCI blades. |
Early 2008 Mac Pro | MP3,1 | possible but risky procedure, need to inject APFS/NVMe EFI modules inside the BootROM and run 10.12/10.13*. Native support for PCIe AHCI blades. |
Early 2009 Mac Pro | MP4,1 | use MP5,1 firmware and update to at least 140.0.0.0.0 and 10.12/10.13*. Supports natively PCIe AHCI blades. |
Mid 2010 Mac Pro | MP5,1 | upgrade to BootROM 140.0.0.0.0 or newer, current one is 144.0.0.0.0, and install 10.12/10.13* to have full native NVMe support. |
Mid 2012 Mac Pro | MP5,1 | upgrade to BootROM 140.0.0.0.0 or newer, current one is 144.0.0.0.0, and install 10.12/10.13* to have full native NVMe support. |
Late 2013 Mac Pro | MP6,1 | upgrade to BootROM MP61.0120.B00 or newer, current one is 136.0.0.0.0, and install 10.12/10.13* to have full native NVMe support. Needs a 12+16 adapter to use standard M.2 blades. |
2019 Mac Pro | MP7,1 | native support, can boot from AHCI or NVMe blades/drives when external booting is enabled with Startup Security Utility. |
* 10.12 only supports 4Kib / sector M.2 blades and U.2 drives while 10.13 and newer macOS releases supports both 4Kib /sector and 512 bytes / sector M.2 blades and U.2 drives.
What are internal storage for the Mac Pro firmware:
Mac Pro year model: | Model Identifier: | What Mac Pro firmware recognise as internal drives: |
Mac Pro (2006) | MP1,1 | SATA drives connected to the 6 southbridge SATA ports plus the two PATA drives connected to the PATA cable inside the ODD bay. |
8-Core Mac Pro (2007) | MP2,1 | SATA drives connected to the 6 southbridge SATA ports plus the two PATA drives connected to the PATA cable inside the ODD bay. |
early-2008 Mac Pro | MP3,1 | SATA drives connected to the 6 southbridge SATA ports plus the two PATA drives connected to the PATA cable inside the ODD bay. |
early-2009 Mac Pro | MP4,1 | SATA/SAS drives connected to the 4 southbridge SATA ports plus the two SATA drives connected to the SATA cable inside the ODD bay. |
mid-2010 Mac Pro | MP5,1 | SATA/SAS drives connected to the 4 southbridge SATA ports plus the two SATA drives connected to the SATA cable inside the ODD bay. |
mid-2012 Mac Pro | MP5,1 | SATA/SAS drives connected to the 4 southbridge SATA ports plus the two SATA drives connected to the SATA cable inside the ODD bay. |
late-2013 Mac Pro | MP6,1 | Only the PCIe SSD is an internal drive. |
2019 Mac Pro | MP7,1 | Only the T2 Storage is an internal drive for T2 Security.
While the two SATA ports of the logic board are internal for macOS, T2 Security definitions override macOS and you can only boot from SATA native ports with relaxed T2 Security, with external boot enabled with Startup Security Utility.
Any PCIe connected storage are external for the firmware and T2 Security. |
NVMe and AHCI Blades:
Apple SSDs: Proprietary Apple 12+16 pin to PCIe adapter needed for Mac Pro 5,1 & older and also 7,1. No adapter needed for Mac Pro 6,1.
SSUAX & SRIUP: Based on Samsung XP941 with UAX controller (S4LN053X01) and Toshiba with Marvell 88SS9183 controller: AHCI
2D MLC
Available in 128GB, 256GB, 512GB, and 1TB
PCIe 2.0 x2 (128GB, 256GB, 512GB) & PCIe 2.0 x4 (1TB)
Speeds: ~1,000 MB/s read, ~800 MB/s write
Sector size: 4 KBytes per sector
Compatibility status:
Good
SSUBX: Based on Samsung SM951 with UBX controller (S4LN058A01): AHCI
2D MLC
Available in 128GB, 256GB, 512GB, and 1TB
PCIe 3.0 x4
Speeds: ~1,500 MB/s read, ~1,425 MB/s write
Sector size: 4 KBytes per sector
Compatibility status:
Good
SSPOLARIS: Based on Samsung SM961 or PM961 with Polaris controller (S4LP077X01): NVMe
2D & 3D MLC or TLC
Available in 24GB, 32GB, 128GB, 256GB, 512GB, 1TB, and 2TB
PCIe 3.0 x4
Speeds: ~2,700 MB/s read, ~2,350 MB/s write
Sector size: 4 KBytes per sector
Compatibility status:
Good
SSPHOTON: Based on Samsung PM971 with Photon controller: NVMe
48-layer MLC
Available in 32GB and ? (LPDDR4 DRAM)
PCIe 3.0 x2 ?
Speeds: 1,500 MB/s read, 900 MB/s write ?
Sector size: 4 KBytes per sector
Compatibility status:
Good
Good article on Apple blade SSDs:
The Ultimate Guide to Apple’s Proprietary SSDs
Samsung SSDs: M.2 PCIe adapter needed for Mac Pro 5,1 & 7,1. M.2 to proprietary Apple adapter needed for Mac Pro 6,1 or external Thunderbolt adapter.
XP941: UAX controller (S4LN053X01): AHCI
2D MLC
Available in 128GB, 256GB, and 512GB
PCIe 2.0 x2 (128GB, 256GB, 512GB) & PCIe 2.0 x4 (1TB)
Speeds: ~1,000 MB/s read, ~800 MB/s write
Sector size: 512 bytes per sector
Datasheet
Compatibility status:
Good
4Kn support:
Unknown
SM951: UBX controller (S4LN058A01): Both AHCI and NVMe versions
2D MLC
Available in 128GB, 256GB, and 512GB
PCIe 3.0 x4
Speeds: ~2,150 MB/s read, ~1,500 MB/s write (512 GB model)
Sector size: 512 bytes per sector
Datasheet (AHCI),
Datasheet (NVMe)
Compatibility status (AHCI):
Good
Compatibility status: (NVMe):
Good
4Kn support: Unknown
950 PRO: UBX controller (S4LN058A01): NVMe
3D MLC
Available in 256GB and 512GB
PCIe 3.0 x4
Speeds: ~2,500 MB/s read, ~1,500 MB/s write
Sector size: 512 bytes per sector
Datasheet
Compatibility status: (NVMe):
Issues/not compatible
4Kn support:
Unknown
PM961: Polaris controller (S4LP077X01): NVMe
3D TLC
Available in 128GB, 256GB, 512GB, and 1TB
PCIe 3.0 x4
Speeds: ~3,000 MB/s read, ~1,500 MB/s write
Sector size: 512 bytes per sector
Datasheet
Compatibility status:
Good
4Kn support:
Unknown
SM961: Polaris controller (S4LP077X01): NVMe
2D & 3D MLC
Available in 128GB, 256GB, 512GB, and 1TB
PCIe 3.0 x4
Speeds: ~3,200 MB/s read, ~1,800 MB/s write
Sector size: 512 bytes per sector
Datasheet
Compatibility status:
Good
4Kn support:
Unknown
960 EVO: Polaris controller (S4LP077X01): NVMe
3D TLC
Available in 250GB, 500GB, and 1TB
PCIe 3.0 x4
Speeds: up to 3,200 MB/s read, up to 1,900 MB/s write
Sector size: 512 bytes per sector
Datasheet
Compatibility status:
Good
4Kn support:
Unknown
960 PRO: Polaris controller (S4LP077X01): NVMe
2D & 3D MLC
Available in 512GB, 1TB, and 2TB
PCIe 3.0 x4
Speeds: ~3,500 MB/s read, ~2,100 MB/s write
Sector size: 512 bytes per sector
Datasheet
Compatibility status:
Good
4Kn support:
Unknown
PM981: Phoenix controller (S4LR020): NVMe
3D TLC (64-layer)
Available in 256GB, 512GB, 1TB, and 2TB
PCIe 3.0 x4
Speeds: ~3,500 MB/s read, up to 2,400 MB/s write
Sector size: 512 bytes per sector
Datasheet
Compatibility status:
Issues/not compatible
4Kn support:
Unknown
PM981a: Phoenix controller (S4LR020): NVMe
3D TLC (64-layer)
Available in 256GB, 512GB, 1TB, and 2TB
PCIe 3.0 x4
Speeds: ~3,500 MB/s read, up to 2,400 MB/s write
Sector size: 512 bytes per sector
Datasheet
Compatibility status:
Issues/not compatible
4Kn support:
Unknown
970 EVO: Phoenix controller (S4LR020): NVMe
3D TLC (96-layer)
Available in 500GB and 1TB
PCIe 3.0 x4
Speeds: up to 3,500 MB/s read, up to 2,500 MB/s write
Sector size: 512 bytes per sector
Datasheet
Compatibility status:
Good
4Kn support:
Unknown
970 EVO Plus: Phoenix controller (S4LR020): NVMe
3D TLC (96-layer)
Available in 250GB, 500GB, 1TB and 2TB
PCIe 3.0 x4
Speeds: up to 3,500 MB/s read, up to 3,300 MB/s write
Sector size: 512 bytes per sector
Datasheet
Compatibility status:
Requires at least firmware 2B2QEXM7 to work with macOS
4Kn support:
Unknown
970 PRO: Phoenix controller (S4LR020): NVMe
3D MLC (64-layer)
Available in 512GB and 1TB
PCIe 3.0 x4
Speeds: up to 3,500 MB/s read, up to ~3,000 MB/s write
Sector size: 512 bytes per sector
Datasheet
Compatibility status:
Good
4Kn support:
Unknown
Intel SSDs:
Optane 900p: NVMe
3D XPoint
Available in 280GB and 480GB
PCIe 3.0 x4 Half Height Half Length (HHHL) Add-in-Card.
Speeds: up to 1,500 MB/s (due to PCIe 2.0 bus limitation)
Datasheet
Compatibility status:
Good
4Kn support:
Unknown
HP SSDs:
EX920: SM2262 controller: NVMe, M.2 blade
3D TLC
Available in 256GB, 512GB, 1TB, and 2TB
PCIe 3.0 x4
Speeds: up to 3,200 MB/s read, up to 1,800 MB/s write (1TB)
Datasheet
Compatibility status:
Good
4Kn support:
Unknown
EX950: NVMe, M.2 blade
3D TLC
Available in 512GB, 1TB, and 2TB
PCIe 3.0 x4
Speeds: up to 3,500 MB/s read, up to 2,900 MB/s write
Datasheet
Compatibility status:
Unknown (may have issues: see post
#1,733)
4Kn support:
Unknown
Toshiba/KIOXIA SSDs:
XG5: TC58NCP090GSD controller: NVMe, M.2 blade
Toshiba 64 layer BiCS3 3D TLC
Available in 256GB, 512GB, and 1TB
PCIe 3.0 x4
Speeds: up to 3,000 MB/s read, up to 2,100 MB/s write (1TB)
Sector size: 512 bytes per sector (emulated), 4 KBytes physical
Datasheet
Compatibility status:
Good
4Kn support:
Yes
XG5-P: TC58NCP090GSD controller: NVMe, M.2 blade
Toshiba 64 layer BiCS3 3D TLC
Available in 1TB and 2TB
PCIe 3.0 x4
Speeds: up to 3,000 MB/s read, up to 2,200 MB/s write (2TB)
Sector size: 512 bytes per sector (emulated), 4 KBytes physical
Datasheet
Compatibility status:
Good
4Kn support:
Yes
XG6: TC58NCP090GSD controller: NVMe, M.2 blade
Toshiba 96 layer BiCS4 3D TLC
Available in 256GB, 512GB, and 1TB
PCIe 3.0 x4
Speeds: up to 3,180 MB/s read, up to 2,960 MB/s write (1TB)
Sector size: 512 bytes per sector (emulated), 4 KBytes physical
Datasheet
Compatibility status:
Good (
@zhpenn is using one with a MP7,1)
4Kn support:
Yes
XG6-P: TC58NCP090GSD controller: NVMe, M.2 blade
Toshiba 96 layer BiCS4 3D TLC
Available in 2TB
PCIe 3.0 x4
Speeds: up to 3,180 MB/s read, up to 2,920 MB/s write
Sector size: 512 bytes per sector (emulated), 4 KBytes physical
Datasheet
Compatibility status:
Unknown (most likely good)
4Kn support:
Yes
Western Digital SSDs:
WD Black: Western Digital in-house: NVMe, M.2 blade
3D TLC
Available in 250GB, 500GB, 1TB
PCIe 3.0 x4
Speeds: up to ~ MB/s read, up to ~ MB/s write (1TB)
Datasheet
Compatibility status:
Unknown
4Kn support:
Unknown
WD Blue SN550: Western Digital in-house: NVMe, M.2 blade
Sandisk 96 layer 3D TLC / Controller DRAM less
Available in 250GB, 500GB, 1TB
PCIe 3.0 x4
Speeds: up to 2400 MB/s read, up to 1950 MB/s write (1TB)
Datasheet
Compatibility status:
Issues/not compatible (don't work from cold boot/sleep issues)
4Kn support:
Unknown
WD Black SN750: Western Digital in-house: NVMe, M.2 blade
Sandisk 64-layer 3D TLC
Available in 250GB, 500GB, 1TB, 2TB
PCIe 3.0 x4
Speeds: up to 3400 MB/s read, up to 2900 MB/s write (2TB)
Datasheet
Compatibility status:
Good
4Kn support:
Unknown
Sabrent SSDs:
Rocket: Phison E12 or E16 controller: NVMe, M.2 blade
Toshiba 3D TLC
Available in 256GB, 512GB, 1TB, 2TB, and 4TB
PCIe 3.0 x4
Speeds: up to 3,450 MB/s read, up to 3,000 MB/s write (4TB)
Sector size: 512 bytes per sector (emulated), 4 KBytes physical
Datasheet
Compatibility status:
Good
4Kn support:
Yes
Rocket Q: Phison E12S controller: NVMe, M.2 blade
Micron 96L 3D QLC
Available in 500GB, 1TB, 2TB, 4TB, and 8TB
PCIe 3.0 x4
Speeds: up to 3,400 MB/s read, up to 3,000 MB/s write (4TB)
Sector size: 512 bytes per sector (emulated), 4 KBytes physical
Datasheet
Compatibility status:
Good
4Kn support:
Yes
SK hynix SSDs:
PC401: NVMe, M.2 blade
Available in 256GB, 512GB, and 1 TB
Speeds: up to 2,700 MB/s read, up to 1,450 MB/s write (1TB)
Sector size: 512 bytes per sector (emulated), 4 KBytes physical
Compatibility status:
Unknown
4Kn support:
Yes
PC601: NVMe, M.2 blade
Available in 256GB, 512GB, and 1 TB
Speeds: up to 3,400 MB/s read, up to 2,500 MB/s write (1TB)
Sector size: Unknown (most likely 512 bytes per sector (emulated), 4 KBytes physical)
Compatibility status:
Unknown
4Kn support:
Unknown (most likely yes)
Gold P31: SK hynix controller: NVMe, M.2 blade
128 layer 4D NAND
Available in 500GB and 1 TB
Speeds: up to 3,200 MB/s read, up to 3,200 MB/s write
Sector size:
Unknown (most likely 512 bytes per sector (emulated), 4 KBytes physical)
Compatibility status:
Unknown
4Kn support:
Unknown (most likely yes)
Platinum P31: SK hynix controller: NVMe, M.2 blade
128 layer 4D NAND
Available in 2 TB
Speeds: up to 3,200 MB/s read, up to 3,200 MB/s write
Sector size:
Unknown (most likely 512 bytes per sector (emulated), 4 KBytes physical)
Compatibility status:
Unknown
4Kn support:
Unknown (most likely yes)
ADATA SSDs:
XPG SX8200 Pro: NVMe, M.2 blade
Available in 256GB, 512GB, 1TB and 2TB
Speeds: up to 3,500 MB/s read, up to 3,000 MB/s write (2TB)
Sector size: 4 KBytes
Compatibility status:
Good
4Kn support:
Unknown
Datasheet
Recommended PCIe adaptors for Mac Pro 5,1 & 7,1:
Standard PCIe x4 cards (tops at 1500 MB/s with MP5,1, double with MP7,1)(no switch):
Low cost:
No heatsinks.
Be warned, don't use AHCI and NVMe blades without having a heatsink installed, you will have thermal throttling frequently and may cook your blade. (Note: Not as important for Apple proprietary blades which have better thermal management under macOS, but still recommended.)
- Lycom DT-120
- For proprietary Apple SSD: generic adapter from eBay (e.g. "2013-2014 Macbook Air SSD PCIe adapter 4X") (no brand)
Medium cost:
All adapters have heatsinks.
PCIe x8 & x16 switch cards (up to ~6200MB/s with MP5,1, double with MP7,1):
Better performance / higher cost (up to 3,000 MB/s with MP5,1, double with MP7,1), tested in the thread:
- IO Crest IO-PCE2824-TM2 (aka Syba SI-PEX40129): Supports 2 blade SSDs. Uses ASMedia x8 ASM2824 switch. Heatsink with a fan over the blades and PCIe switch. Up to 2900MB/s with MP5,1 and a little less than 6000MB/s total throughput with MP7,1.
- OWC ACCELSIOR 4M2 Supports four (seems to require single side M.2 blades, to be confirmed) 80mm M.2 blades. Uses x8 ASMedia ASM2824 switch. Heatsink over the blades and PCIe switch. It's a PCIe 3.0 x8 card, ~2900MB/s with MP5,1 PCIe 2.0 slot1 and slot2 and double that with MP7,1 PCIe 3.0 slots. Several reports that the original version have problems with 2019 Mac Pro and only the revised version works with MP7,1.
Top performance / high cost [tops at 3200 MB/s with one blade, 6200 MB/s (10000~120000 MB/s for MP7,1) with two to four], all tested in the thread:
Untested in the thread yet, but should work:
Recommended M.2 to Apple 12+16 pin adaptors for Mac Pro 6,1:
Don't buy PCIe adaptors list:
Any multiple M.2 blades card from ASRock/Asus/Gigabyte/MSI that don't have a PCIe 3.0 switch and requires a motherboard with PCI Express Lane Partitioning support, also known as bifurcation support, like the cards listed on the table below.
It's already confirmed that MP7,1 PCIe slots, the two MPX ones are connected to the CPU, are behind a 96-lane PEX8796 PCIe switch, so no PCI Express Lane Partitioning support for 2019 Mac Pro, and the same requirements for PCIe M.2/U.2 adapters as MP5,1 are valid, the only difference is that 2019 Mac Pro slots are PCIe 3.0.
Being crystal clear, 2019 Mac Pro doesn't support the cheap multiple M.2 adapters that require motherboard bifurcation support and only the first blade of the four is recognized.