TrueNAS H-Series
Compact and mission-critical: 2U, optional HA, hybrid or all-flash — NVMe in every bay.
Compact and Mission-Critical
The H-Series is TrueNAS's compact platform for edge sites, small data centres and branch offices. In just 2U it combines 12 tri-mode bays, optional dual-controller HA and full NVMe support — selectable per bay. The H-Series therefore covers hybrid pools, pure SAS pools and pure all-NVMe pools in the same chassis.
The series comprises three models: H10, H20 and the new H30 (launched in January 2025) — positioned by iXsystems as the "Swiss Army Knife of Storage". All models run the full TrueNAS Enterprise suite — snapshots, replication, inline compression, fast deduplication, RDMA and Truecloud backup.
Three models — one platform
Pick the H-Series model that fits your workload and site — same form factor, same software, scaling hardware.
Entry & Edge
Compact hybrid storage for branches, edge sites and smaller office workloads — with full HA option.
- • 4 cores / 8 threads per controller
- • 64 - 128 GB RAM
- • 3.2 TB NVMe read cache
- • 2 GB/s throughput
- • 4× 1 GbE + up to 4× 10/25 GbE
Mid-range
More cores, more RAM, double the read cache and a 100 GbE option — for virtualisation, databases and mixed pools.
- • 10 cores / 20 threads per controller
- • 128 - 256 GB RAM
- • 2× 3.2 TB NVMe read cache
- • 4 GB/s throughput
- • Up to 2× 40/100 GbE
Swiss Army Knife of Storage
The new top model in the H-Series. Double the cores compared to H20, double the read cache and up to 1.5 PB all-NVMe in 2U.
- • 20 cores / 40 threads per controller
- • 256 GB RAM
- • 2× 6.4 TB NVMe read cache
- • 8 GB/s throughput
- • Up to 2× 40/100 GbE, 2× 32 Gb FC
Configure the H-Series yourself
Build your live capacity, RAID layout, networking and expansion in a few clicks — shareable config code, no login, free of charge.
Open the configuratorDetailed specifications
Full configuration table — straight from the official TrueNAS H-Series datasheet (January 2026).
| Specification | H10 | H20 | H30 New |
|---|---|---|---|
| Dual Controller (HA) | Optional | ||
| Cores per Controller | 4 Cores / 8 Threads | 10 Cores / 20 Threads | 20 Cores / 40 Threads |
| RAM (Max) | 64 - 128 GB | 128 - 256 GB | 256 GB |
| Read Cache (Max) | 3.2 TB NVMe | 2× 3.2 TB NVMe | 2× 6.4 TB NVMe |
| Write Cache | NVMe SSD | NVMe SSD | 2× NVMe SSD |
| Drive Bays | 12× 3.5"/2.5" tri-mode (NVMe or SAS HDD per bay) | ||
| Onboard Networking | 4× 1G base-T | 4× 1G base-T | 4× 1G base-T + 2× 10G base-T |
| Optional Networking | Up to 4× 10/25 GbE | Up to 4× 10/25 GbE or 2× 10/25 + 2× 40/100 GbE | Up to 4× 10/25 GbE or 2× 10/25 + 2× 40/100 GbE |
| Fibre Channel | 2× 16 Gb | 2× 16 Gb | 2× 32 Gb |
| Max. Throughput | 2 GB/s | 4 GB/s | 8 GB/s |
| Max. Capacity (raw) | 1.8 PB | 3 PB | 3 PB |
| Max. Effective Capacity * | 3.6 PB | 6 PB | 6 PB |
| Max. All-NVMe Capacity (raw) | 180 TB | 360 TB | 720 TB |
| Max. Effective All-NVMe * | 360 TB | 720 TB | 1.5 PB |
| Expansion Shelves | 1× ES24 or ES60 | 1× ES24, ES60 or ES102 | 1× ES24, ES60 or ES102 |
| Average Power Draw | 200 W | 300 W | 400 W |
| Peak Power Draw | 250 W | 350 W | 450 W |
| Heat Output | 700 BTU/h | 1000 BTU/h | 1400 BTU/h |
| System / Dimensions | 2U chassis – 681 × 483 × 89 mm – 19.5 kg empty / 30.4 kg loaded | ||
| Management Network | 1× IPMI Out-of-Band + 1× TrueNAS WebUI | ||
* Maximum effective capacity assumes typical data reduction through compression and deduplication. Source: TrueNAS H-Series Data Sheet (January 2026).
Architecture and expansion
The 2U chassis combines tri-mode bays with optional HA and 100 GbE options — in a compact form factor.
12 tri-mode bays
Each of the 12 hot-swap bays accepts SAS HDD (8-26 TB), SAS SSD (1.9-15.36 TB) or NVMe SSD (3.8-61.4 TB) — selectable per bay.
Dual-controller HA optional
All three models are optionally available with dual-controller HA — failover without data loss and with virtual IP migration.
100 GbE-ready (H20/H30)
H20 and H30 support 2× 40/100 GbE or 4× 10/25 GbE — enough bandwidth for virtualisation and VDI.
Up to 1.5 PB all-NVMe in 2U (H30)
With 12× 61.4 TB NVMe drives, the H30 reaches up to 1.5 PB effective flash capacity — ideal for AI inference at the edge.
Available storage media
All media ship with full TrueNAS Enterprise integration — including hardware AES-NI encryption, S.M.A.R.T. monitoring and hot-swap support.
Enterprise Nearline HDDs
- • 7200 RPM SAS3
- • 8 TB to 26 TB per HDD
- • Optional SED and FIPS 140
SAS SSDs
- • 1.9 TB to 15.36 TB per SSD
- • Optional SED and FIPS 140
NVMe SSDs
- • 3.8 TB to 61.4 TB per SSD
- • Optional SED and FIPS 140
- • Freely mixable with SAS media per bay
Power, climate, dimensions
Redundant 80 Plus Platinum power supplies (auto-switching 100-240 V) with hot-swap. Remote power-on/off via IPMI and UPS signal integration are standard.
Protocols and integration
Full TrueNAS Enterprise suite — file, block and object in one system. Deep integration into hypervisor and cloud stacks.
File protocols
- • SMB v1/2/3
- • NFSv3, NFSv4 with RDMA
- • FTP, WebShare
Block protocols
- • iSCSI, RDMA via iSER
- • NVMe-oF (TCP/RDMA)
- • Fibre Channel
- • OpenStack Cinder
Object & directory services
- • S3-compliant + Immutable Locking
- • MinIO Alstor
- • Active Directory, FreeIPA
- • Kerberos, LDAP, NIS
Hypervisors & apps
- • VMware (VAAI, vCenter, VM Warn/Stun)
- • Proxmox plugin (iSCSI + snapshots)
- • Hyper-V (VSS, ODX, CSV)
- • KVM, XenServer, OpenShift
- • Kubernetes CSI
What is the H-Series built for?
Workloads that demand a compact form factor, optional HA and flexible media choice.
Edge sites & branch offices
Compact 2U storage for distributed sites with central management, ZFS replication and optional HA.
Small virtualisation environments
iSCSI and NFS storage for VMware, Proxmox and Hyper-V clusters with 10-100 VMs — including snapshot integration and HA.
Video surveillance
Hybrid pools with large HDDs as recording target. Scalable up to 3 PB raw via an ES60 or ES102 shelf.
VM hosting for office
Central storage for file, mail and database VMs in SMBs. Inline compression and snapshots included.
Backup targets for SMBs
High-capacity backup target for Veeam, Asigra, CommVault and Truecloud backup to Storj — with immutable snapshots against ransomware.
All-NVMe in 2U for AI inference
Up to 1.5 PB all-NVMe (H30) for GPU inference nodes, medical PACS or real-time analytics — with NVMe-oF to compute nodes.
Security and compliance
The H-Series uses the TrueSecure features of the TrueNAS Enterprise suite — from hardware-accelerated encryption to audited admin roles.
Backup and cloud integration
The H-Series fits seamlessly into existing backup and cloud strategies — as primary storage tier or as a replication target.
Your benefits with DATAZONE
As a TrueNAS partner we accompany you through the full H-Series lifecycle — from sizing and commissioning to operations. We are vendor-neutral and configure the system strictly around your real requirements.
Is the H-Series right for you?
The H-Series is the right choice if at least one of these applies:
- → Storage requirement under 3 PB raw
- → Edge site or branch with limited rack space
- → Optional HA wanted — without a 4U footprint
- → Compact 2U form factor mandatory
- → Mixed workloads, but with NVMe option per bay
Above 3 PB, 100 GbE+ or 99.999% uptime requirements, the V or M-Series is often a better fit — we will tell you straight.
Frequently asked questions
What is the TrueNAS H-Series?
Which models are part of the H-Series?
What does tri-mode mean on the H-Series?
When is the H30 the right choice instead of the V160?
Which networking options are available?
What is the power consumption?
Which expansion shelves are supported?
Which protocols and hypervisors are supported?
Evaluate the TrueNAS H-Series
We advise you on the right configuration (H10, H20 or the new H30), hybrid vs. all-NVMe layouts and integration into your existing infrastructure.
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