Data storage systems

Exos SCALE

Maximise capacity per rack with high‑density JBOD infrastructure for software‑defined environments

Exos SCALE

Extreme density, zero compromise

For organizations riding exponential data growth, Exos SCALE systems offer high‑density JBODs built for hyperscale and hybrid. SAS‑4 throughput, SDS‑friendly design and operational simplicity reduce cost and risk, while Mozaic™‑ready enclosures safeguard your capacity roadmap for tomorrow’s drives. Scale out. Keep TCO in.

SCALE smarter

Store more data per rack, reduce long‑term TCO and keep your software strategy flexible as your data footprint grows

sg_icons-desing-800x800_density-unmatched
Density, unmatched
Pack more usable capacity into every rack while reducing overhead with Seagate’s industry‑leading areal density.
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Throughput, faster
Speed ingest and retrieval for modern, data‑intensive workloads with 24G SAS throughput.
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Stacks, on your terms
Integrate seamlessly with software‑defined, object and file stacks — without lock‑in.
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Future, enabled
Adopt today’s highest‑capacity drives and tomorrow’s breakthroughs without re‑architecting.
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Operations, simplified
Deploy, service and scale with repeatable designs that reduce operational effort.
sg_icons-desing-800x800_cost-minimized
Cost, minimized
Lower your data center power, cooling and footprint costs across the system lifecycle.

SCALE with confidence

Decades of innovation behind every deployment

Exos SCALE brings Seagate’s leadership in mass-capacity storage to high-density expansion, helping organizations grow with greater efficiency, control and confidence. The platform delivers a trusted path to lower cost, higher density and smoother scale across data-intensive environments.

With deep expertise spanning drives, systems and enclosure design, Seagate helps enterprises build for today’s demand while staying ready for what comes next.

Core platform advantages

High-density, highly efficient storage enclosures
Maximizes capacity per rack unit for efficient scaling without expanding data center footprint.
Support for current + next-generation high-capacity HDDs
Protects long-term infrastructure investments by enabling seamless adoption of higher-capacity drives as technologies evolve.
Adaptive software-agnostic architecture
Offers flexibility to deploy, change or evolve object, file or software-defined storage platforms without proprietary lock-in.
Fully redundant, hot-swappable components
Simplifies maintenance and expansion while minimizing downtime and operational risk in live environments.
Flexible HDD, SSD + hybrid configurations
Allows enterprises to tailor performance and capacity to specific workload requirements without changing systems.
Optimized power, cooling + system stability
Reduces energy consumption per usable terabyte while advanced vibration and thermal mitigation helps maintain consistent performance and reliability in high-density environments.
Standards-based management + integration
Streamlines deployment and monitoring across heterogeneous environments, reducing complexity for infrastructure teams.
Enterprise-grade build + proven reliability at scale
Delivers predictable performance in large, long-running deployments for data-intensive, business-critical environments.

Which SCALE system is right for you?

We’ve laid them out side by side so you can quickly spot what fits your needs.

Features
EX2U12 / 2U24
EX5U84
EX4U74
DC4U100
Form factor
Form factor
Form factor

2U

Form factor

5U

Form factor

4U

Form factor

4U

Max drives
Max drives
Max drives

12 / 24

Max drives

84

Max drives

74

Max drives

100

Drive interface
Drive interface
Drive interface

SAS/SATA 

Drive interface

SAS 

Drive interface

SAS/SATA 

Drive interface

SAS/SATA 

Host/expansion I/O ports
Host/expansion I/O ports
Host/expansion I/O ports

Three universal ×4 12Gb/s mini-SAS HD connectors (SFF-8644) per I/O module 

Host/expansion I/O ports

Three universal ×4 12Gb/s mini-SAS HD connectors (SFF-8644) per I/O module 

Host/expansion I/O ports

Four ×4 mini-SAS HD Expansion I/O connectors per I/O module 

Host/expansion I/O ports

Four ×4 mini-SAS HD Expansion I/O connectors per I/O module 

Expansion
Expansion
Expansion

Up to 144 drives 

Expansion

Up to 336 drives 

Expansion
Expansion
Power supply
Power supply
Power supply

580W (Gold/Platinum) 

Power supply

2200W (Titanium/Platinum) 

Power supply

1800W (Titanium) 

Power supply

1800W (Titanium) 

Dimensions
Dimensions
Dimensions

88.9 mm x 483 mm x 630 mm 

Dimensions

220 mm x 483 mm x 933 mm 

Dimensions

175.5 mm x 448.5 mm x 932 mm / 1146 mm 

Dimensions

175.5 mm x 448.5 mm x 932 mm / 1146 mm 

Weight
Weight
Weight

26 kg / 24 kg 

Weight

135 kg 

Weight

98.9 kg / 125.6 kg 

Weight

98.9 kg / 125.6 kg 

Hot-swappable
Hot-swappable
Hot-swappable

Drives, PCMs, I/O modules 

Hot-swappable

Drives, PSUs, cooling modules, I/O modules 

Hot-swappable

Drives, IOM, PSUs, fans 

Hot-swappable

Drives, PSUs, fans, I/O modules 

Use case
Use case
Use case

Compact modular expansion 

Use case

High-density storage with drawer design 

Use case

AI, edge, hybrid cloud 

Use case

AI, edge, hybrid cloud

SCALE solutions