Seagate Exos X24 3.5-Inch Internal 512e/4Kn SATA Enterprise Hard Drive
Delivering maximum storage capacity with the highest rack-space efficiency.

Overview:

Scalable. Responsive. Innovative.

Powerful performance with proven technology—Seagate’s Exos X24 drives are built off the platform that’s shipped millions globally and deployed in leading cloud service provider solutions—making them the most sought-after drives in our datasphere. Designed with the highest rack-space efficiency and protected with Seagate Secure, Exos X24 offers extreme market-leading capacity, earning customer confidence by delivering trusted peace of mind.

Best-Fit Applications

• Scalable hyperscale applications/cloud data centers
• Massive scale-out data centers
• Big data applications
• High-capacity density RAID storage
• Mainstream enterprise external storage arrays
• Distributed file systems, including Hadoop and Ceph
• Enterprise backup and restore— D2D, virtual tape
• Centralized surveillance

Features:

Maximum Storage Capacity for Highest Rack Space Efficiency

• Market-leading 24TB HDD offering the highest capacity available for more petabytes per rack¹
• Highly reliable performance with enhanced caching, making it the logical choice for cloud data center and massive scale-out data center applications
• Hyperscale SATA model tuned for large data transfers and low latency
• PowerBalance feature optimizes Watts/TB
• Maximize total cost of ownership savings through lower power and weight with helium sealed-drive design
• Proven helium side-sealing weld technology for added handling robustness and leak protection
• Digital environmental sensors to monitor internal drive conditions for optimal operation and performance
• Data protection and security— Seagate Secure features for safe, affordable, fast, and easy drive retirement
• Proven enterprise-class reliability backed by 5-year limited warranty and 2.5M-hr MTBF rating

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¹ Compared to 20TB competitive product.

Specifications:

Specifications	24TB	20TB	16TB	12TB
Standard Model - Seagate Instant Secure Erase (ISE)1	ST24000NM002H	ST20000NM002H	ST16000NM002H	ST12000NM002H
SED Model2	ST24000NM001H	ST20000NM001H	ST16000NM001H	ST12000NM001H
SED-FIPS2	—	—	—	—
Features
Interface	SATA 6Gb/s	SATA 6Gb/s	SATA 6Gb/s	SATA 6Gb/s
Helium Sealed-Drive Design	Yes	Yes	Yes	Yes
Conventional Magnetic Recording (CMR)	Yes	Yes	Yes	Yes
Protection Information (T10 DIF)	—	—	—	—
SuperParity	Yes	Yes	Yes	Yes
Low Halogen	Yes	Yes	Yes	Yes
PowerChoice Idle Power Technology	Yes	Yes	Yes	Yes
PowerBalance Power/Performance Technology	Yes	Yes	Yes	Yes
Hot-Plug Support1	Yes	Yes	Yes	Yes
Cache, Multisegmented (MB)	512	512	512	512
Organic Solderability Preservative	Yes	Yes	Yes	Yes
RSA 2048 Firmware Verification (SD&D)	Yes	Yes	Yes	Yes
Reliability / Data Integrity
Mean Time Between Failures (MTBF, hours)	2,500,000hr	2,500,000hr	2,500,000hr	2,500,000hr
Reliability Rating @ Full 24×7 Operation (AFR)	0.35%	0.35%	0.35%	0.35%
Nonrecoverable Read Errors per Bits Read	1 sector per 10E15	1 sector per 10E15	1 sector per 10E15	1 sector per 10E15
Power-On Hours per Year (24×7)	8760	8760	8760	8760
512e Sector Size (Bytes per Sector)	512	512	512	512
4Kn Sector Size (Bytes per Sector)	4096	4096	4096	4096
Limited Warranty (years)	5	5	5	5
Performance
Spindle Speed (RPM)	7200RPM	7200RPM	7200RPM	7200RPM
Interface Access Speed (Gb/s)	6.0, 3.0	6.0, 3.0	6.0, 3.0	6.0, 3.0
Max. Sustained Transfer Rate OD (MB/s,MiB/s)	285/272	285/272	285/272	285/272
Random Read/Write 4K QD16 WCD (IOPS)	168/550	168/550	168/550	168/550
Average Latency (ms)	4.16ms	4.16ms	4.16ms	4.16ms
Interface Ports	Single	Single	Single	Single
Rotation Vibration @ 1500 Hz (rad/s²)	12.5	12.5	12.5	12.5
Power Consumption
Idle A (W) Average	6.3W	6.3W	6.3W	6.3W
Max Operating, Random Read/Write 4K/16Q (W)	8.9, 7.1	8.9, 7.1	8.9, 7.1	8.9, 7.1
Power Supply Requirements	+12 V and +5 V	+12 V and +5 V	+12 V and +5 V	+12 V and +5 V
Environmental/Temperature
Temperature, Operating (°C)	10°C – 60°C	10°C – 60°C	10°C – 60°C	10°C – 60°C
Vibration, Nonoperating: 2 to 500Hz (Grms)	2.27	2.27	2.27	2.27
Shock, Operating 2ms (Read/Write) (Gs)	40Gs	40Gs	40Gs	40Gs
Shock, Nonoperating, 2ms (Gs)	200	200	200	200
Physical
Height (mm/in, max)4	26.1mm/1.028in	26.1mm/1.028in	26.1mm/1.028in	26.1mm/1.028in
Width (mm/in, max)4	101.85mm/4.010in	101.85mm/4.010in	101.85mm/4.010in	101.85mm/4.010in
Depth (mm/in, max)4	147mm/5.787in	147mm/5.787in	147mm/5.787in	147mm/5.787in
Weight (g/lb)	685g/1.51lb	685g/1.51lb	685g/1.51lb	685g/1.51lb
Carton Unit Quantity	20	20	20	20
Cartons per Pallet/Cartons per Layer	40 / 8	40 / 8	40 / 8	40 / 8

¹ FastFormat models ship in 512e format state. When switching from 512e to 4Kn by executing the FastFormat routine, all data on the drive will be deleted. Note that data must be aligned to 4K sectors to see improved performance in 4Kn fomat.
² Self-Encrypting Drives (SED) and FIPS 140-3 Validated drives available through franchised authorized distributors. May require TCG-compliant host or controller support.
³ Supports Hotplug operation per Serial ATA Revision 3.5 specification
⁴ These base deck dimensions conform to the Small Form Factor Standard (SFF-8301) found at www.sffcommittee.org. For connector-related dimensions, see SFF-8323.

Documentation:

Download the Seagate Exos X24 3.5-Inch Enterprise HDD Datasheet (.PDF)