TrueNAS R-Series · Powerful Single Controller Storage

TrueNAS R50

Storage Type: Hybrid (48× 3.5″ + 4× 2.5″ NVMe)
Form Factor: 4U–12U scalable
CPU: 6–16 Cores
Memory: 64–192 GB DRAM
Cache: 4× 800 GB NVMe SSD
Networking: 2× 10/25/40/100 GbE + up to 4× 10GBaseT
Max Throughput: 10 GB/s
Max Raw Capacity: 6.5 PB

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Overview

The TrueNAS R50 offers high-density unified storage solutions that combine the robust features of OpenZFS with cost-effective, single-controller hardware. With 48× 3.5″ drive bays and 4× 2.5″ NVMe cache bays in a 4U–12U chassis, the R50 delivers exceptional density and price-performance for organizations seeking scalable, reliable storage without compromising on quality.

The field-replaceable single controller and scalable chassis design make the R50 well-suited for environments that prioritize performance and scalability per dollar. Whether deployed as a standalone NAS/SAN/object storage solution or as nodes in a scale-out S3 cluster, the R50 provides up to 256 drives, 6.5 PB raw capacity, and 10 GB/s throughput.

Features and Benefits

The capabilities that make the TrueNAS R50 a high-density hybrid platform — 48 drive bays, 4× NVMe cache, and field-replaceable single controller — for cost-effective petabyte-scale storage.

High-Density Unified Storage

48 Drive Bays, Field-Replaceable Controller — Maximum Density per Dollar

The TrueNAS R50 combines the robust capabilities of OpenZFS with cost-effective, single-controller hardware. The field-replaceable controller design reduces maintenance complexity and downtime risk, while 48× 3.5″ bays and 4 dedicated 2.5″ NVMe cache slots enable massive capacity with solid-state read/write acceleration — all in a single scalable chassis.

Advanced Data Protection

Features self-healing OpenZFS file system with copy-on-write, automatic bit-rot detection, built-in RAID protection, unlimited snapshots, and resilient replication to safeguard data integrity across up to 6.5 PB raw.

Scalable Architecture

Supports scale-up and scale-out S3 configurations, allowing seamless expansion from a single NAS/SAN/object target to clustered deployments with up to 256 total drives.

Connectivity and Integration

2× 10/25/40/100 GbE

Dual high-speed optical ports support 10, 25, 40, or 100 GbE connectivity for flexible integration with any switching fabric.

Up to 4× 10GBaseT

Additional copper 10G ports expand management and data-path capacity using existing Cat6A infrastructure.

2× 32 Gb Fibre Channel

Optional 32 Gb FC connectivity enables SAN block storage access for FC-attached servers and hypervisors in existing FC fabrics.

Flexible Integration

Compatible with major virtualization hypervisors, backup software, cloud storage services, and offers a fully-featured REST API for streamlined management.

Simplified Data Management

Cost-Effective Performance — 10 GB/s at 6.5 PB Density

The TrueNAS R50 optimizes per-dollar performance and scalability, delivering enterprise-grade storage solutions without compromising on quality. Powerful features like data protection, snapshots, replication, scrubbing, data reduction, and security simplify data management tasks. Integrated enclosure management capabilities streamline monitoring, allowing administrators to oversee drive statuses from a single interface.

4× 800 GB NVMe SSD Cache

Four dedicated NVMe cache drives — double the R20's SATA cache — provide higher-throughput read/write acceleration for frequently accessed data and mixed workloads.

TrueSecure Security

FIPS 140 for data-at-rest and data-in-flight, NIST 800-209, GP-OS STIG, KMIP key management, and encrypted drives and datasets protect all stored data end-to-end.

View all features in the datasheet

Authorized TrueNAS Reseller

More than a price tag

Getting the R50 right means choosing the correct CPU tier, DRAM, drive mix, and whether 32 Gb FC is needed for your SAN. Tell us your capacity target and workload type and we'll configure the right R50 and stay on the order until it ships.

Configuration guidance from people who know TrueNAS
Authorized-reseller pricing, without the procurement friction
Order follow-through — from PO to delivery

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Technical Specifications

Hardware metrics from the official TrueNAS datasheet.

Platform

TrueNAS R50
Storage Type

Hybrid
Form Factor

4U–12U scalable
Chassis Depth

39″, 990 mm
Controllers

Single (field-replaceable)
Drive Bays

48× 3.5″, 4× 2.5″ (NVMe)
CPU per Controller

6–16 Cores
DRAM per Controller

64–192 GB

Read & Write Cache

4× 800 GB NVMe SSD
Max Throughput

10 GB/s
Max Raw Capacity

6.5 PB
Max Effective Capacity

13 PB
Max Drives Supported

256
Expansion Shelves

2

High-Speed Networking

2× 10/25/40/100 GbE
Additional Networking

2 or 4× 10GBaseT or SR
Fibre Channel (Option)

2× 32 Gb

File Protocols

SMB v1/2/3, NFSv3/v4/RDMA, FTP, WebShare
Block Protocols

iSCSI, iSER, Fibre Channel, NVMe-oF, OpenStack Cinder
Object Protocols

S3-compliant using MinIO AIStor (single node, clustered)
Directory Services

Active Directory, FreeIPA, Kerberos, LDAP, NIS
File System

OpenZFS — self-healing, immutable snapshots, RAID-Z1/Z2/Z3, dRAID
TrueSecure Security

FIPS 140, NIST 800-209, GP-OS STIG, KMIP key management, encrypted drives and datasets
Cloud Backup

iX-Storj, Amazon S3, Backblaze B2, Google Cloud, Microsoft Azure
Backup Integration

Supports Asigra, Acronis, Veeam, Nakivo, NetBackup, and more

View datasheet for full specs

Compare TrueNAS R-Series Models

Select the right scale for your storage workload.

TrueNAS R-Series model comparison by throughput, capacity, and networking.
Model	Max Throughput	Max Raw Capacity	Networking	Action
TrueNAS R20	8 GB/s	3.4 PB raw	2× 10/25/40/100 GbE	View
TrueNAS R50 This model	10 GB/s	6.5 PB raw	2× 10/25/40/100 GbE	Current
TrueNAS R60	60 GB/s	7 PB raw	2× 400 GbE or 4× 25/100/200 GbE	View

R20 vs R50: deeper buyer guide

Frequently asked questions

The TrueNAS R50 is a high-density hybrid rackmount NAS with 48+4 drive bays, up to 6.5 PB raw capacity, 10 GB/s throughput, and NVMe SSD cache. Single-controller architecture, TrueNAS Enterprise + OpenZFS.

Up to 6.5 PB raw — roughly 13 PB effective with compression and dedupe. Supports 256 drives with expansion shelves.

The R50 has 4× the drive count (48+4 vs 12+2), roughly 2× the raw capacity (6.5 PB vs 3.4 PB), NVMe SSD cache instead of SATA SSD cache, and 10 GB/s vs 8 GB/s peak throughput. Same protocols, same management, same single-controller architecture.

2× 10/25/40/100 GbE primary plus 2 or 4× 10GBaseT, with optional 2× 32 Gb Fibre Channel.

NVMe SSD cache (4× 800 GB) — a step up from the R20's SATA SSD cache, better for mixed read/write workloads.