
Seagate Exos X18 12 Gb/s SAS 3.5" Internal Hard Drive, 18TB Capacity, 7200 RPM Spindle Speed, 256MB Cache, 2,500,000 Hours MTBF, 270 MB/s 258 MiB/s Transfer Rate | ST18000NM004J
Highly reliable performance with enhanced caching, making it the logical choice for cloud data centre and massive scale-out data centre applications
Hyperscale SATA model tuned for large data transfers and low latency
PowerBalance™ feature optimises Watts/TB
Maximise 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
Included warranty
1 Year
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Additional Warranty
Product Description

Standard Model | ST18000NM004J |
Helium Drive | Yes |
CMR | Yes |
T10 DIF | Yes |
SuperParity | Yes |
Low Halogen | Yes |
PowerChoice™ | Yes |
PowerBalance™ | Yes |
Hot-Plug Support | Yes |
Cache (MB) | 256 |
OSP | Yes |
RSA 3072 FW Verification | Yes |
MTBF (hrs) | 2,500,000 |
AFR | 0.35% |
Read Errors | <1 in 10E15 |
Power-On Hours | 8,760 |
512e Sector | 512, 520, 528 |
4Kn Sector | 4096, 4160, 4224 |
Warranty | 5 yrs |
Spindle Speed | 7200 RPM |
Interface Speed | 12.0, 6.0, 3.0 Gb/s |
Transfer Rate (MB/s, MiB/s) | 270 / 258 |
Random R/W IOPS (4K QD16) | 170 / 550 |
Latency (ms) | 4.16 |
Ports | Dual |
RV (rad/sec²) | 12.5 |
Idle Power (W) | 5.8 |
Max Power R/W (W) | 9.9 / 7.0 |
Power Supply | +12V & +5V |
Op Temp (°C) | 5–60 |
Non-op Vib (Grms) | 2.27 |
Shock Op (Gs) | 50 |
Shock Non-op (Gs) | 200 |
Height (mm/in) | 26.1 / 1.028 |
Width (mm/in) | 101.85 / 4.01 |
Depth (mm/in) | 147 / 5.787 |
Weight (g/lb) | 670 / 1.477 |
Carton Qty | 20 |
Pallet/Layer | 40 / 8 |
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