Seagate X18 Internal HDD Overview
The 16TB Exos X18 7200 rpm SATA III 3.5" Internal HDD from Seagate is a high-performance, large-capacity drive designed for hyperscale cloud scalability, massive scale-out data centers, big data applications, high-capacity density RAID storage, and other demanding tasks that require 24/7 operation. This 7200 rpm drive utilizes a SATA III 6 Gb/s interface for data transfer rates of up to 261 MB/s. As a professional-grade drive, it has an MTBF rating of 2.5 million hours, an annualized failure rate of 0.35%, and 1 sector per 1015 non-recoverable read errors per bits read, as well as built-in digital sensors to ensure optimal performance, PowerBalance for lower power consumption, and a helium seal for lower power, weight, and increased durability and leak protection.
Best-Fit Applications
Scalable hyperscale applications / cloud data centers
Massive scale-out data centers
High-capacity density RAID storage
Mainstream enterprise external storage arrays
Distributed file systems, including Hadoop and Ceph
Enterprise backup and restore � D2D, virtual tape
Maximum Storage Capacity for Highest Rack Space Efficiency
A 16TB drive offers high capacity for more petabytes per rack
Highly reliable performance with enhanced caching makes it a 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 optimizes watts per terabyte
Maximize total cost of ownership savings through lower power and weight with a helium sealed-drive design
Helium side-sealing weld technology for additional handling robustness and leak protection
Digital environmental sensors to monitor internal drive conditions for optimal operation and performance
Seagate Secure features for safe, affordable, fast, and easy drive retirement
Proven enterprise-class reliability backed by a limited 5-year warranty and 2.5 million-hour MTBF rating
![]()
UPC: 763649138960
In the Box
- Seagate 16TB Exos X18 7200 rpm SATA III 3.5" Internal HDD
- Limited 5-Year Warranty
Seagate X18 Internal HDD Specs
Performance
| Write Speed |
Random: 550 IOPS 4 KB Files |
| Read Speed |
Maximum: 261 MB/s
Random: 170 IOPS 4 KB Files |
| Latency |
4.1 ms |
Physical
| Drive Type |
HDD |
| Form Factor |
3.5" |
HDD Specs
| Spindle Speed (RPM) |
7200 RPM |
| Disk Sector Format |
512e, Advanced Format (4Kn) |
Reliability / Data Integrity
| Annualized Failure Rate (AFR) |
0.35 % |
| Mean Time Between Failures (MTBF) |
2.5 Million Hours |
| Non-Recoverable Read Errors per Bits Read |
1 in 1015 |
Electrical
| Power Draw |
5.3 W (Idle)
9.4 W (Active)
6.4 W (Active) |
| Supported Voltage |
5 VDC, 12 VDC |
Environmental
| Operating Shock |
50 G / 2.0 ms |
| Storage Shock |
200 G / 2.0 ms |
| Storage Vibration |
2.27 G / 2 to 500 Hz |
| Operating Temperature |
41 to 140°F / 5 to 60°C |
General
| Dimensions (W x H x D) |
4.01 x 1.03 x 5.79" / 101.85 x 26.16 x 147.07 mm |
| Weight |
1.48 lb / 0.67 kg |
Packaging Info
| Package Weight |
1.75 lb |
| Box Dimensions (LxWxH) |
8.7 x 6.3 x 2.7" |
Seagate X18 Internal HDD Reviews
All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.
