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Product Name	Perfect For	Spindle Speed (RPM)/ Cache (MB)/	Capacity	Form Factor	Product Interfaces	Storage Type	Areal Density	Encryption	AFR	Mean Time Between Failures	Average Operating Power

Product Name	Perfect For	Spindle Speed (RPM)/ Cache (MB)	Capacity	Form Factor	Product Interfaces	Storage Type	Areal Density	Encryption	AFR	Mean Time Between Failures	Average Operating Power

Enterprise Capacity 3.5 HDD Learn more Constellation ES.3 Data Sheet (541KB)	Highest-capacity enterprise drive, up to 4TB for maximum density server and storage solutions Perfect for reliable, 24×7 bulk data storage Predictable 7,200-rpm performance even in the most rugged multi-drive SAS or SATA environments	7200RPM 64MB, 128MB Compare Enterprise Capacity 3.5 HDD Models	500GB — 4TB	3.5in	SAS 6Gb/s, SATA 3Gb/s, SATA 6Gb/s	HDD	324Gb/in², 444Gb/in², 566Gb/in², 578Gb/in²	Encryption, Encryption/FIPS	0.63%, 0.73%	1,200,000hr, 1,400,000hr	10.68W, 10.72W, 11.27W, 11.33W, 11.86W, 4.32W, 6.40W, 6.76W, 6.97W, 8.08W, 8.93W, 9.42W, 9.57W, 9.59W
Enterprise Value HDD Learn more Constellation CS Data Sheet (484KB)	Affordable storage for 24×7 cloud data centre replicated environments Maximises storage footprint with capacities up to 3TB for 114TB per square foot Energy-efficient at under 8 watts (random read operating power), which averages 29% less than competing hard drives	7200RPM 64MB Compare Enterprise Value HDD Models	1 — 3TB	3.5in	SATA 6Gb/s		625Gb/in²		1.065%	800,000hr	7.79W
Enterprise Performance 10K HDD Learn more Savvio 10K.6 Data Sheet (615KB)	Improve data centre storage efficiency Enhance reliability with advanced media management technology Built-in security at no extra cost	10000RPM 64MB Compare Enterprise Performance 10K HDD Models	300 — 900GB	2.5in	Fibre Channel 4Gb/s, SAS 3Gb/s, SAS 6Gb/s	HDD	506Gb/in², 508Gb/in², 538Gb/in²	Encryption, Encryption/FIPS	0.44%%, 0.44%	2,000,000hr
Cheetah 15K Learn more Cheetah 15K.7 Data Sheet (485KB)	Switch to Savvio 15K for maximum performance Switch to Savvio 10K for the perfect balance of high performance and high capacity Switch to Constellation ES for five times more storage capacity	15000RPM 16MB Compare Cheetah 15K Hard Drive Models	73.4 — 600GB	3.5in	Fibre Channel 2Gb/s, Fibre Channel 4Gb/s, SAS 3Gb/s, SAS 6Gb/s	HDD	225Gb/in²	Encryption, Encryption/FIPS	0.55%, 0.62%	1,600,000hr	12.92W, 13.8W, 14.60W, 15.17W, 16.31W, 16.35W
Constellation Learn more Constellation.2™ Data Sheet (268KB)	Maximises the data centre footprint with up to 76TB per square foot Energy efficient storage at under 3.9 watts (idling) Highest nearline reliability with an MTBF of 1.4M hours	7200RPM 64MB Compare Constellation Hard Drive Models	250GB — 1TB	2.5in	SAS 6Gb/s, SATA 3Gb/s, SATA 6Gb/s	HDD	417Gb/in²	Encryption, Encryption/FIPS	0.62%	1,400,000hr	4.61W, 4.73W, 5.43W, 5.48W, 6.35W
Savvio 15K Learn more Savvio 15K.3 Data Sheet (610KB)	Faster transaction processing, facilitating faster time-to-revenue Double data storage capacity (up to 300GB) over previous generation Improves reliability by up to 20% with an annualised failure rate (AFR) of 0.44%	15000RPM 16MB, 64MB Compare Savvio 15K Hard Drive Models	73.4 — 300GB	2.5in	SAS 3Gb/s, SAS 6Gb/s	HDD	237.1Gb/in², 448Gb/in²	Encryption, Encryption/FIPS	0.44%%, 0.44%, 0.55%	1,600,000hr, 2,000,000hr	6.62W, 7.22W

Enterprise Capacity 3.5 HDD Learn more Constellation ES.3 Data Sheet (541KB)	7200RPM 64MB, 128MB Compare Enterprise Capacity 3.5 HDD Models	Highest-capacity enterprise drive, up to 4TB for maximum density server and storage solutions Perfect for reliable, 24×7 bulk data storage Predictable 7,200-rpm performance even in the most rugged multi-drive SAS or SATA environments	500GB — 4TB	3.5in	SAS 6Gb/s, SATA 3Gb/s, SATA 6Gb/s	HDD	324Gb/in², 444Gb/in², 566Gb/in², 578Gb/in²	Encryption, Encryption/FIPS	0.63%, 0.73%	1,200,000hr, 1,400,000hr	10.68W, 10.72W, 11.27W, 11.33W, 11.86W, 4.32W, 6.40W, 6.76W, 6.97W, 8.08W, 8.93W, 9.42W, 9.57W, 9.59W
Enterprise Value HDD Learn more Constellation CS Data Sheet (484KB)	7200RPM 64MB Compare Enterprise Value HDD Models	Affordable storage for 24×7 cloud data centre replicated environments Maximises storage footprint with capacities up to 3TB for 114TB per square foot Energy-efficient at under 8 watts (random read operating power), which averages 29% less than competing hard drives	1 — 3TB	3.5in	SATA 6Gb/s		625Gb/in²		1.065%	800,000hr	7.79W
Enterprise Performance 10K HDD Learn more Savvio 10K.6 Data Sheet (615KB)	10000RPM 64MB Compare Enterprise Performance 10K HDD Models	Improve data centre storage efficiency Enhance reliability with advanced media management technology Built-in security at no extra cost	300 — 900GB	2.5in	Fibre Channel 4Gb/s, SAS 3Gb/s, SAS 6Gb/s	HDD	506Gb/in², 508Gb/in², 538Gb/in²	Encryption, Encryption/FIPS	0.44%%, 0.44%	2,000,000hr
Cheetah 15K Learn more Cheetah 15K.7 Data Sheet (485KB)	15000RPM 16MB Compare Cheetah 15K Hard Drive Models	Switch to Savvio 15K for maximum performance Switch to Savvio 10K for the perfect balance of high performance and high capacity Switch to Constellation ES for five times more storage capacity	73.4 — 600GB	3.5in	Fibre Channel 2Gb/s, Fibre Channel 4Gb/s, SAS 3Gb/s, SAS 6Gb/s	HDD	225Gb/in²	Encryption, Encryption/FIPS	0.55%, 0.62%	1,600,000hr	12.92W, 13.8W, 14.60W, 15.17W, 16.31W, 16.35W
Constellation Learn more Constellation.2™ Data Sheet (268KB)	7200RPM 64MB Compare Constellation Hard Drive Models	Maximises the data centre footprint with up to 76TB per square foot Energy efficient storage at under 3.9 watts (idling) Highest nearline reliability with an MTBF of 1.4M hours	250GB — 1TB	2.5in	SAS 6Gb/s, SATA 3Gb/s, SATA 6Gb/s	HDD	417Gb/in²	Encryption, Encryption/FIPS	0.62%	1,400,000hr	4.61W, 4.73W, 5.43W, 5.48W, 6.35W
Savvio 15K Learn more Savvio 15K.3 Data Sheet (610KB)	15000RPM 16MB, 64MB Compare Savvio 15K Hard Drive Models	Faster transaction processing, facilitating faster time-to-revenue Double data storage capacity (up to 300GB) over previous generation Improves reliability by up to 20% with an annualised failure rate (AFR) of 0.44%	73.4 — 300GB	2.5in	SAS 3Gb/s, SAS 6Gb/s	HDD	237.1Gb/in², 448Gb/in²	Encryption, Encryption/FIPS	0.44%%, 0.44%, 0.55%	1,600,000hr, 2,000,000hr	6.62W, 7.22W

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AT A GLANCE
FEATURES
SPECIFICATIONS

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Product Name	Perfect For	Spindle Speed (RPM)/ Cache (MB)/	Capacity	Form Factor	Product Interfaces	Storage Type	Encryption	AFR	Mean Time Between Failures	Average Operating Power

Product Name	Perfect For	Spindle Speed (RPM)/ Cache (MB)	Capacity	Form Factor	Product Interfaces	Storage Type	Encryption	AFR	Mean Time Between Failures	Average Operating Power

Pulsar

Pulsar.2™ Data Sheet (601KB)

Enterprise-class endurance (capable of up to 10 full drive writes per day)
Protection against unintended data change or loss
Capacities up to 800GB

pulsar main

Solid State

Compare Pulsar™ Solid State Drive Models

100 — 800GB

2.5in

SAS 6Gb/s, SATA 3Gb/s, SATA 6Gb/s

SSD

Encryption, Encryption/FIPS

0.44%

2,000,000hr

3.42W, 3.49W, 3.54W, 4.65W, 4.66W, 4.68W, 4.75W, 5.93W

Pulsar

Pulsar.2™ Data Sheet (601KB)

pulsar main

Solid State

Compare Pulsar™ Solid State Drive Models

Enterprise-class endurance (capable of up to 10 full drive writes per day)
Protection against unintended data change or loss
Capacities up to 800GB

100 — 800GB

2.5in

SAS 6Gb/s, SATA 3Gb/s, SATA 6Gb/s

SSD

Encryption, Encryption/FIPS

0.44%

2,000,000hr

3.42W, 3.49W, 3.54W, 4.65W, 4.66W, 4.68W, 4.75W, 5.93W

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AT A GLANCE
FEATURES
SPECIFICATIONS

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