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TrueNAS M-Series


Hero TrueNAS M50

Enterprise-Grade Open Storage

The TrueNAS M-Series is the flagship model of TrueNAS Enterprise systems and is ideally suited for heavy IT storage workloads and intensive data center applications.

The TrueNAS M-Series provides High Availability (HA), hybrid capacity, and all-flash performance configurations. The M-Series grows to support multiple 100GbE ports and over 20PB of storage. Read the ESG Technical Report on the M50 performance.

All TrueNAS Enterprise systems use OpenZFS to give you unbelievable performance with legendary protection and reliability for your mission-critical data. Ready to take your storage to the next level? Talk to us to find out why TrueNAS is the best choice for your next data storage project.


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VMware Certified with support for up to 10000 VMs

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File Sharing

Share Billions of files with thousands of users with SMB or NFS

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Create sound, images, and 4K / 8K video. Store up to 20 PB

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Securely backup with Petabytes of affordable storage


Architecture MSeries
The M-Series is a 4U system with dual controllers. Each controller has NVDIMMs for extremely low latency write caching and there is a high bandwidth PCIe interconnect between controllers to synchronize the NVDIMMs. The controllers share access to 24 x 3.5” drives (HDD, SSD, RI-SSD) and also can share 4 low latency NVMe drives which can be used for metadata or persistent read cache.


TrueNAS M40 TrueNAS M50 TrueNAS M60
TrueNAS M40 TrueNAS M50 TrueNAS M60
Dual Controllers (HA) Optional Optional Optional
DRAM Per Controller 128 GB 256 GB - 384 GB 768 GB
Max Ethernet Speed 2x 40GbE 2x 100GbE 4x 100GbE
Fibre Channel (option) 4x 16Gb 4x 16Gb or 2x 32Gb 4x 32Gb
Expansion Shelves 2 8 12
Max Drives Supported 144 504 1248
Hybrid Storage (HDD + Flash)
Max Capacity 2 PB 9 PB 20 PB
Max Effective Capacity* 5 PB 22.5 PB 50 PB
Max Read Cache 3 x 800 GB SAS SSD 4 x 3.2TB NVMe 4 x 3.2TB NVMe
All-Flash Storage
Max Capacity 1 PB 2 PB 4 PB
Max Effective Capacity* 5 PB 10 PB 20 PB
Certifications Citrix Ready, VMware Ready, Veeam Ready, Asigra Integrated
Max Throughput 5GB/s 10GB/s 20GB/s
Performance Up to 1M IOPS. Varies based on configuration. Contact us.
Pricing Starting at $10,000. Grow HDD capacity at less than $75/TB, All-Flash at less than $395/TB
Datasheets TrueNAS M-Series Datasheet, TrueNAS Expansion Shelf Datasheet
* Maximum effective capacity assumes typical data reduction through compression and deduplication.
The M-Series is designed for maximum ZFS performance and five 9’s availability while keeping the storage affordable. With advanced read and write caching and expansion to over 1200 drives, the M-Series is ideal for multi-PB storage. For performance applications, all-flash storage with TLC or QLC flash can provide low latency and very high IOPS at industry-leading prices. Contact us for a system design and quote that will fit within your budget.


TrueNAS M-Series Datasheet
TrueNAS Open Storage Product Line
DCIG TrueCommand White Paper
1stAveMachine Case Study
JFK Presidential Library and Museum Case Study
University College of London Case Study