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Seagate IronWolf Pro 18TB NAS Hard Drive (ST18000NT001) @ R 12,899.00

Western Digital WD Gold Enterprise Class 20TB 3.5" Hard Drive (WD202KRYZ) @ R 11,699.00

Western Digital Ultrastar DC HC530 SATA 14TB Server Hard Drive (WUH721414ALE6L4) @ R 10,499.01

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product page	view details	view details	view details	view details	view details	view details	view details	view details
price	R 9,899.00	R 8,699.00	R 9,399.00	R 6,899.00	R 12,999.00	R 9,099.00	R 8,399.00	R 6,299.00
model	WD Red Pro NAS 12TB / WD121KFBX	WD Red Plus 12TB / WD120EFBX	Exos X18 12TB SAS / ST12000NM004J	WD Gold Enterprise Class 12TB / WD121KRYZ	HAT5300-12TB / SYN-HAT5300-12TB	IronWolf Pro 12TB / ST12000NT001	Skyhawk AI 12TB / ST12000VE001	MG07ACA12TA
name	WD Red Pro NAS 12TB 3.5" Hard Drive (WD121KFBX)	Red Plus 12TB NAS Hard Drive (WD120EFBX)	Exos X18 12TB 3.5" SAS Enterprise Internal Hard Drive (ST12000NM004J)	WD Gold Enterprise Class 12TB 3.5" Hard Drive (WD121KRYZ)	HAT5300 Series 12TB Enterprise Internal Hard Drive (HAT5300-12TB)	IronWolf Pro 12TB NAS Hard Drive (ST12000NT001)	Skyhawk AI 12TB 3.5" Desktop Surveillance Hard Drive (ST12000VE001)	MG07 Series 12TB 3.5" SIE Enterprise Hard Drive (MG07ACA12TA)
details	* SATA3, 3.5" form factor * 7200rpm * 256MB Cache * for NAS systems with up to 24-bays * 240MB/s Internal Transfer Rate * NASWare 3.0 Technology * multi-axis shock protection	* 3.5" Form Factor * SATA III 6 Gb/s Interface * 7200RPM * 256MB Cache * Up to 196 MB/s Sustained Transfer Rate * CMR Recording Technology, Native command queuing, Advanced Format (AF), RoHS compliant * 1 Million Hours MTBF * Built and tested for up to 8-bay NAS systems * Supports up to 180 TB/yr workload rate * Small or medium business NAS systems in a 24x7 environment	* 12 Gb/s SAS * 7200 RPM * 512e/4Kn Sector Size (Bytes per Sector) * Cache, Multi-segmented (MB): 256 MB * Max. Sustained Transfer Rate OD (MB/s, MiB/s): 270/258 * Dual Interface Ports * MTBF: 2,500,000 * Power-On Hours per Year (24×7): 8,760	* SATA * 7200rpm * 256MB Cache * Max Data Transfer Rate: 255MB/s * Engineered for heavy application workloads and designed to handle workloads up to 550TB per year. * Specifically designed for use in enterprise-grade storage systems and data centers * ArmorCache feature * up to 2.5M hours MTBF * HelioSeal technology delivers high capacities with low power draw (12TB & up) * OptiNAND technology in 20TB and 22TB * Compatible with Windows, Windows Server, and Linux	* Interface: SATA 6 Gb/s * Up to 242 MB/s sustained data transfer * 7200RPM * Mean Time to Failure (MTTF): 2.5 million hours * Up to 23% faster sequential read in Synology NAS * Purpose-built for Synology servers running 24/7 * Automatic firmware updates with DSM	* Interface: SATA 6Gb/s * Unlimited Drive Bays Supported * Workload Rate Limit (WRL): 550 * Drive Design (Air or Helium): Air * 7200 RPM * 256MB Cache * 512e Drive Format * Max. Sustained Transfer Rate OD (MB/s): 250MB/s * Mean Time Between Failures (MTBF, hours): 2,000,000	* Interface: SATA 6 Gb/s * CMR Recording Technology * Drive Bays Supported: 16 * AI Channels 32 * Max. Sustained Transfer Rate OD (MB/s): 235MB/s * 256MB Cache * Maximum rate of <550TB/year * Mean Time Between Failures (MTBF): 2,000,000 hr	* Cloud-scale Storage Infrastructure * Engineered for Mid-line / Nearline Business Critical Workloads * Tier 2 Business-Critical Servers and Storage Systems * Object and File Storage Solutions * SATA-6Gbps High Performance * 4Kn Format * 7200RPM * 256MB * MTTF/MTBF 2.5M hours * 5 Year Warranty
warranty	5 years	3 years	5 years	5 years	5 years	5 years	3 years	5 years
General
Model	WD Red Pro NAS 12TB	WD Red Plus 12TB	Exos X18 12TB SAS	WD Gold Enterprise Class 12TB	HAT5300-12TB	IronWolf Pro 12TB	Skyhawk AI 12TB
Product Line	WD Red Pro NAS	WD Red Plus	Exos X18	WD Gold Enterprise Class	HAT5300 Series	IronWolf Pro	Skyhawk AI	MG07 Series
Drive Type	NAS	NAS	Server	Desktop	NAS	NAS	Surveillance	Desktop
SSHD	<not specified>	<not specified>	<not specified>	<not specified>	<not specified>	<not specified>	<not specified>	<not specified>
Form Factor	3.5 inch	3.5 inch	3.5 inch	3.5 inch	3.5 inch	3.5 inch	3.5 inch	3.5 inch
Capacity	12 TB	12 TB	12 TB	12 TB	12 TB	12 TB	12 TB	12 TB
Interface	SATA3	SATA3	SAS	SATA3	SATA3	SATA3	SATA3	SATA3
Drive Format	<not specified>	<not specified>	512e 4Kn	512e	512e	512e	<not specified>	4Kn
Self Encrypting Drive (SED)	<not specified>	<not specified>	<not specified>	<not specified>	<not specified>	<not specified>	<not specified>	<not specified>
Certification	<not specified>	<not specified>	<not specified>	<not specified>	<not specified>	<not specified>	<not specified>	<not specified>
Performance
Rotational Speed	7200 rpm	7200 rpm	7200 rpm	7200 rpm	7200 rpm	7200 rpm	7200 rpm	7200 rpm
Cache Size	256 MB	256 MB	256 MB	256 MB	256 MB	256 MB	256 MB	256 MB
Average Latency	<not specified>	<not specified>	4.16 msec	<not specified>	<not specified>	<not specified>	<not specified>	<not specified>
Data Rate	240 MB/s	196 MB/s	270 MB/s	255 MB/s	242 MB/s	250 MB/s	235 MB/s	242 MB/s
Random read seek time	<not specified>	<not specified>	<not specified>	<not specified>	<not specified>	<not specified>	<not specified>	<not specified>
Random write seek time	<not specified>	<not specified>	<not specified>	<not specified>	<not specified>	<not specified>	<not specified>	<not specified>
Thickness	<not specified>	26.1 mm	26.1 mm	26.1 mm	26.1 mm	26.1 mm	<not specified>	26.1 mm
Optional Accessories
Rescue Plan	<not specified>	<not specified>	<not specified>	<not specified>	<not specified>	<not specified>	<not specified>	<not specified>