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Seagate Exos 16TB Enterprise HDD X16 SATA 6Gb/s 512e/4Kn 7200 RPM 256MB Cache 3.5" Internal Hard Drive ST16000NM001G
Seagate Exos 16TB Enterprise HDD X16 SATA 6Gb/s 512e/4Kn 7200 RPM 256MB Cache 3.5" Internal Hard Drive ST16000NM001G
  • Average Latency: 4.16ms
  • Height (maximum): 26.11mm
  • Width (maximum): 101.85mm
  • Length (maximum): 147.00mm
  • Model #: ST16000NM001G
  • Item #: 1Z4-002P-015K6
  • Return Policy: Standard Return Policy
Toshiba 14TB Enterprise HDD SATA 6.0Gb/s 512e 7200 RPM 512MB Cache 3.5" Internal Hard Drive MG08ACA14TE
Toshiba 14TB Enterprise HDD SATA 6.0Gb/s 512e 7200 RPM 512MB Cache 3.5" Internal Hard Drive MG08ACA14TE
  • Height (maximum): 26.10mm
  • Width (maximum): 101.85mm
  • Length (maximum): 147.00mm
  • Model #: MG08ACA14TE
  • Item #: N82E16822149785
  • Return Policy: Standard Return Policy
  • $399.99
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  • $299.99 (6 Offers)
  • Save: 25%
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Seagate BarraCuda ST8000DM004 8TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
Seagate BarraCuda ST8000DM004 8TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
  • Height (maximum): 26.11mm
  • Width (maximum): 101.85mm
  • Length (maximum): 146.99mm
  • Model #: ST8000DM004
  • Item #: N82E16822183793
  • Return Policy: Standard Return Policy
  • $178.99
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  • $169.99 (5 Offers)
  • Save: 5%
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WD Blue 2TB Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 256MB Cache 3.5 Inch - WD20EZBX
WD Blue 2TB Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 256MB Cache 3.5 Inch - WD20EZBX
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD20EZBX
  • Item #: N82E16822234469
  • Return Policy: Standard Return Policy
  • $69.99
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  • $54.99 (8 Offers)
  • Save: 21%
  • $1.99 Shipping
WD Red Plus 4TB NAS Hard Disk Drive - 5400 RPM Class SATA 6Gb/s, CMR, 128MB Cache, 3.5 Inch - WD40EFZX
WD Red Plus 4TB NAS Hard Disk Drive - 5400 RPM Class SATA 6Gb/s, CMR, 128MB Cache, 3.5 Inch - WD40EFZX - OEM
  • Height (maximum): 26.10mm
  • Width (maximum): 101.60mm
  • Length (maximum): 147.00mm
  • Model #: WD40EFZX
  • Item #: 1B4-005X-001D3
  • Return Policy: Standard Return Policy
WD Black 5TB P10 Game Drive Portable External Hard Drive for PS5/PS4/Xbox One/PC/Mac USB 3.2 (WDBA3A0050BBK-WESN)
WD Black 5TB P10 Game Drive Portable External Hard Drive for PS5/PS4/Xbox One/PC/Mac USB 3.2 (WDBA3A0050BBK-WESN)
  • Form Factor: 2.5"
  • Dimensions: 0.82" x 3.46" x 4.65"
  • Weight: 0.52 lb.
  • Package Contents: WD_BLACK P10 Game Drive Quick Install Guide
  • Model #: WDBA3A0050BBK-WESN
  • Item #: N82E16822234385
  • Return Policy: Standard Return Policy
  • $149.99
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  • $129.99 (7 Offers)
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TOSHIBA X300 4TB Desktop Hard Drive 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Retail Packaging HDWE140XZSTA
TOSHIBA X300 4TB Desktop Hard Drive 7200 RPM 128MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Retail Packaging HDWE140XZSTA
  • Average Latency: 4.17ms
  • Height (maximum): 26.10mm
  • Width (maximum): 101.85mm
  • Length (maximum): 147.00mm
  • Model #: HDWE140XZSTA
  • Item #: N82E16822149627
  • Return Policy: Standard Return Policy
  • $129.99
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  • $104.99 (5 Offers)
  • Save: 19%
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Toshiba 16TB Enterprise HDD SATA 6.0Gb/s 512e 7200 RPM 512MB Cache 3.5" Internal Hard Drive MG08ACA16TE
Toshiba 16TB Enterprise HDD SATA 6.0Gb/s 512e 7200 RPM 512MB Cache 3.5" Internal Hard Drive MG08ACA16TE
  • Height (maximum): 26.10mm
  • Width (maximum): 101.85mm
  • Length (maximum): 147.00mm
  • Model #: MG08ACA16TE
  • Item #: 1Z4-000B-00FR7
  • Return Policy: Standard Return Policy
  • $359.99
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  • $329.99 (8 Offers)
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Seagate IronWolf 4TB NAS Hard Drive 5900 RPM 64MB Cache SATA 6.0Gb/s CMR 3.5" Internal HDD for RAID Network Attached Storage ST4000VN008
Seagate IronWolf 4TB NAS Hard Drive 5900 RPM 64MB Cache SATA 6.0Gb/s CMR 3.5" Internal HDD for RAID Network Attached Storage ST4000VN008
  • Height (maximum): 26.11mm
  • Width (maximum): 101.85mm
  • Length (maximum): 146.99mm
  • Model #: ST4000VN008
  • Item #: N82E16822179005
  • Return Policy: Standard Return Policy
  • $110.99
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  • $104.99 (9 Offers)
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Seagate IronWolf 8TB NAS Hard Drive 7200 RPM 256MB Cache SATA 6.0Gb/s CMR 3.5" Internal HDD for RAID Network Attached Storage ST8000VN004
Seagate IronWolf 8TB NAS Hard Drive 7200 RPM 256MB Cache SATA 6.0Gb/s CMR 3.5" Internal HDD for RAID Network Attached Storage ST8000VN004
  • Height (maximum): 26.11mm
  • Width (maximum): 101.85mm
  • Length (maximum): 146.99mm
  • Parts: 3 Year
  • Model #: ST8000VN004
  • Item #: N82E16822184796
  • Return Policy: Standard Return Policy
WD Elements 14TB USB 3.0, Micro-B Desktop Hard Drive WDBWLG0140HBK-NESN Black
WD Elements 14TB USB 3.0, Micro-B Desktop Hard Drive Black

+ $40 off w/ promo code EMC2AZ92Z55, limited offer

  • Dimensions: 6.50" x 1.90" x 5.30"
  • Weight: 1.98 lbs.
  • Package Contents: WD Elements Desktop hard drive USB cable AC adapter Quick Install Guide
  • Model #: WDBWLG0140HBK-NESN
  • Item #: N82E16822234411
  • Return Policy: Standard Return Policy
Seagate BarraCuda ST4000DM004 4TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drives Bare Drive - OEM
Seagate BarraCuda ST4000DM004 4TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drives Bare Drive - OEM
  • Height (maximum): 20.17mm
  • Width (maximum): 101.60mm
  • Length (maximum): 146.99mm
  • Model #: ST4000DM004
  • Item #: N82E16822179299
  • Return Policy: Standard Return Policy

Computer hard drives contain all the data in your PC, from the operating system to music, movies and video games. Whether you have a laptop or a desktop computer, there are several types of hard drives to choose from. The most common hard drive interfaces are PATA, SATA and SAS. 

HDDs Provide Up To 10TB of Storage Space

HDDs use platters to perform their essential functions. A motor spins the plates while an actuator arm reads and writes on them. Inside the hard drive, there's also an I/O controller that communicates with the other components of the computer system. SSDs, instead, use flash memory.

For this reason, SSDs are much faster. They also tend to generate less heat inside the computer case and to consume less energy than HDDs. Since they have less fragile internal parts, SSDs are generally more durable. However, HDDs can have up to 10TB of capacity, while SSDs can only handle up to 4TB of storage space. Thanks to their speed, SSDs are standard as boot drives. HDDs, instead, work better as mass storage devices.

Are PATA Desktop Hard Drives Compatible With Older Computers?

PATA hard drives need bulky ribbon-like cables to connect to the motherboard. These cables may cause overheating inside the computer case, especially for laptops. If you want multiple PATA hard drives in your PC, you must connect them with the correct jumpers in a master-slave configuration. The master drive communicates directly with the computer and controls the slave drive. This is possible thanks to the configuration of the motherboard, which has both a primary and secondary PATA channel. The PATA standard can transmit data at a maximum speed of 133MBps.

SATA Drives Are Faster and Require Less Bulky Cables

SATA computer hard drives can transmit data at a speed of 150, 300 or 600MBps. SATA drives improve the overall speed of the PC, allowing apps and games to load faster. These drives connect directly to the motherboard with cables that are much smaller than the PATA ones, allowing air to flow better inside the computer case. Each drive connects directly to the motherboard, with no need for a master-slave configuration. SATA cables have a maximum length of 3.3ft so that you can mount the hard drive everywhere inside the computer case.

SAS Internal Hard Drives Offer Superior Reliability

Thanks to their speed and reliability, SAS drives are mostly common in servers, data centers and business computer systems. They can run 24 hours a day, seven days a week, and handle up to 1.6 million hours of use at 45°. On the other hand, SATA drives have more capacity and consume less power. SAS drives use cables with a maximum length of 33ft, to meet the needs of large or complex servers. They use a redundant array of independent disks (RAID) to prevent data losses and downtime; If one of the drives fails while you're working, the data will still be available on another drive.

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