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Dell ST3300657SS-H
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DELL
Dell ST3300657SS-H
  • Model #: 6IH8W-00-B0068-10
Seagate Cheetah 10K.7 ST3300007LC 300GB 10000 RPM 8MB Cache SCSI Ultra320 80pin 3.5" Hard Drive Bare Drive
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  • $899.95 
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Western Digital Ultrastar DC H590 WUH722626AL5204 0F59375 26TB 7200 RPM SAS 12Gb/s 512e SE Enterprise Hard Drive
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Western Digital
Western Digital Ultrastar DC H590 WUH722626AL5204 0F59375 26TB 7200 RPM SAS 12Gb/s 512e SE Enterprise Hard Drive
  • Brand: Western Digital
  • Series: Ultrastar DC HC590
  • Capacity: 26TB
  • RPM: 7200 RPM
  • Model #: WUH722626AL5204 0F59375
ST2000NM0023 Seagate 2TB 7200RPM 6Gbps 3.5" SAS HDD Hard Drive (ST2000NM0023)
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  • $59.00 
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Seagate Exos 7E8 ST8000NM001A - hard drive - 8 TB - SAS 12Gb/s
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Seagate
Seagate Exos 7E8 ST8000NM001A - hard drive - 8 TB - SAS 12Gb/s
  • Average Latency: 4.16ms
  • NAND Flash Memory Type: Hard Drive
  • Height (maximum): 26.10mm
  • Width (maximum): 101.85mm
  • Model #: ST8000NM001A.
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Seagate Exos X20 ST20000NM007D 20TB 7200 RPM 256MB Cache 3.5" Internal Hard Drive
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Seagate Exos X20 ST20000NM007D 20TB 7200 RPM 256MB Cache 3.5" Internal Hard Drive
  • Average Latency: 4.16ms
  • NAND Flash Memory Type: Hard Drive
  • Recording Technology: CMR
  • Height (maximum): 26.10mm
  • Model #: ST20000NM007D
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Seagate 1TB Enterprise Capacity 2.5 Internal Hard Disk Drive SATA 6.0Gb/s 7200 RPM 128MB Cache Model ST1000NX0423
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Seagate
Seagate 1TB Enterprise Capacity 2.5 Internal Hard Disk Drive SATA 6.0Gb/s 7200 RPM 128MB Cache Model ST1000NX0423
  • Average Latency: 4.16ms
  • Features: Design Small and Deliver BIG - 2.5-Inch Nearline Drive - Up to 2TB capacity in 15mm z-height, 2.5-inch form factor for space-constrained data centers - Designed for high-density storage solutions requiring environmentally sound low power consumption and low weight for maximum storage efficiency - Choose 12Gb/s SAS for high data integrity, scalability and
  • Usage: For Enterprise Storage
  • Height (maximum): 15mm
  • Model #: ST1000NX0423
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SEAGATE 2TB EXOS 7E2000 HDD 4KN SATA 2.5 7200 128MB
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Seagate
SEAGATE 2TB EXOS 7E2000 HDD 4KN SATA 2.5 7200 128MB
  • NAND Flash Memory Type: Hard Drive
  • Average Latency: 4.16ms
  • Features: Design Small and Deliver BIG - 2.5-Inch Nearline Drive - Up to 2TB capacity in 15mm z-height, 2.5-inch form factor for space-constrained data centers - Designed for high-density storage solutions requiring environmentally sound low power consumption and low weight for maximum storage efficiency - Choose 12Gb/s SAS for high data integrity, scalability and
  • Usage: For Enterprise Storage
  • Model #: ST2000NX0243
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Dell 400-ASHI - Dell 1.2TB 2.5" SAS 10K 12Gb/s Hard Drive
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DELL
Dell 400-ASHI - Dell 1.2TB 2.5" SAS 10K 12Gb/s Hard Drive
  • NAND Flash Memory Type: SLC
  • Average Latency: 12Gb/s
  • Model #: 400-ASHI
Dell 400-AGFU 6 TB Hard Drive - 3.5" Internal - Near Line SAS (NL-SAS) (6Gb/s SAS)
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st340016a 40GB 7200 RPM 2MB Cache IDE 3.5" Hard Drives
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st340016a 40GB 7200 RPM 2MB Cache IDE 3.5" Hard Drives
  • Parts: 5 years limited
  • Labor: 5 years limited
  • Model #: ST340016A
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  • $85.00 
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Dell HUS156060VLS600 W348K 600GB 15K 6Gb/s 3.5" SAS Hard Drive - (ZERO HOURS)
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9ZM170-136 Dell 4TB 7.2K SATA 6G LFF Hard Drive
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Seagate 6TB Enterprise Desktop Hard Disk Drive - 7200 RPM SAS 12Gb/s 128MB 3.5" ST6000NM0054
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  • $264.45 
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Maxtor DiamondMax Plus 9 6Y120L0 120GB 7200 RPM 2MB Cache IDE Ultra ATA133 / ATA-7 3.5" Hard Drive Bare Drive
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Used - Like New Maxtor DiamondMax Plus 9 6Y120L0 120GB 7200 RPM 2MB Cache IDE Ultra ATA133 / ATA-7 3.5" Hard Drive Bare Drive
  • Average Seek Time: 9.3ms
  • Average Latency: 4.2ms
  • Parts: 1 year limited
  • Labor: 1 year limited
  • Model #: 6Y120L0
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  • $89.00 
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MDD MDD18TSATA25672DVR 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive for Surveillance
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Refurbished MDD MDD18TSATA25672DVR 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive for Surveillance
  • Height (maximum): 26.10mm
  • Width (maximum): 101.85mm
  • Length (maximum): 147.00mm
  • Parts: 5 Years
  • Model #: MDD18TSATA25672DVR
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  • $439.99 
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Seagate IronWolf 12TB NAS Hard Drive 7200 RPM 256MB Cache SATA 6.0Gb/s CMR 3.5" Internal HDD for RAID Network Attached Storage ST12000VN0007
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Seagate IronWolf 12TB NAS Hard Drive 7200 RPM 256MB Cache SATA 6.0Gb/s CMR 3.5" Internal HDD for RAID Network Attached Storage ST12000VN0007
  • Height (maximum): 26.11mm
  • Width (maximum): 101.85mm
  • Length (maximum): 146.99mm
  • Model #: ST12000VN0007
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Western Digital WD10EZEX 1TB 7200RPM 6Gbps 3.5" SATA HDD Hard Drive
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  • $54.95 
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ST2000NM0001-DELL 2TB 7200RPM 6GBPS 2.5-INCH SAS LFF HARD DRIVE
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  • $39.99 
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WL 1TB 32MB Cache 7200RPM SATA2 (3.0Gb/s) 3.5" Internal Desktop Hard Drive (For CCTV DVR, NAS, PC/Mac) -1 Year Warranty
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WL 1TB 32MB Cache 7200RPM SATA2 (3.0Gb/s) 3.5" Internal Desktop Hard Drive (For CCTV DVR, NAS, PC/Mac) -1 Year Warranty
  • Parts: 1 Year Warranty from Reseller
  • Labor: 1 Year Warranty from Reseller
  • Model #: WL1000SATA3272-S3
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  • $49.99 
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Desktop internal hard drives store operating systems, system files, software and individual files. They can offer anywhere from 500GB of storage up to 8TB or more and come with a variety of interfaces. Although most internal drives are 3.5in., some devices use a smaller 2.5in. form factor. Smaller and larger physical sizes are rare but do exist. Also, consider the speed of the drive. Internal hard drives for desktop computers tend to run at 7,200 revolutions per minute (RPM) but faster read-write speeds minimize waiting time. Hard drives with speeds of up to 15,000 RPM are available. Finally, memory cache is the amount of memory that can be active at any given time. A larger cache is important if you work with multiple large files at once.

Improve Your Computer's Performance with a New Hard Drive

You might not be concerned about storage space when you buy a new PC, but the hard drive will fill will with files and software. A new desktop internal hard drive can replace an existing drive that has reached maximum capacity. Alternatively, if your motherboard has a spare bay, you can add a second or additional device to expand storage. An internal HDD for PCs is easy to install, has greater capacity and speed than an external device and comes with multiple storage options.

Store All Your Data with Large Capacity Drives

Every piece of software you install, every song you save, every video you download takes up storage space, which can slow down a computer. A 720p movie takes up approximately 8GB, while a 4k video can consume as much as 100GB of a desktop internal hard drive. Even the Windows 10 operating system requires 15GB. A 500GB hard drive can be useful for storing files while you're on the move before transferring them to a larger drive if you don't have a personal cloud device or portable hard drive. For everyday and ongoing storage, this size drive will quickly fill up. Desktop internal hard drives offer the storage of up to 16TB in some cases, providing plenty of space for software and files.

Ensure Compatibility by Choosing the Right Interface

The most commonly used standards for connecting a desktop internal hard drive to a motherboard are SATA and SAS. Determine the motherboard's interface and ensure that you match this when buying a new drive to ensure compatibility and to avoid having to use an adapter. Check the label off the drive you are replacing or look at the manufacturer guidelines for your motherboard.

Access Data Quicker with a Fast SATA Internal Hard Drive

The speed the disk platters spin determines how quickly information can be retrieved from the drive. It is common for external hard drives to have a speed of 5,000 RPM because this draws less power and makes minimal noise. Other hard drive designs have a speed of up to 15,000 RPM, depending on the model.

Bestselling Desktop Internal Hard Drives Reviews:

Keith V.
4/9/2026 4:20:16 PM
High Capacity Plug and Play Drive

“ SATA so it plugs right into my old media server ”

Seagate BarraCuda ST24000DM001 24TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
Perry K.
3/26/2026 7:05:57 AM
Seagate Barracuda 2TB Hard Drive

“ Received and installed new Seagate Hard Drive in older Dell Inspiron PC. ”

Seagate BarraCuda ST2000DM008 2TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drive Bare Drive
Anonymous
1/17/2026 7:23:35 PM
Works great if not DOA

“ I initially purchased two drives to replace two old WD 6TB drives (one died before Xmas) in a WD NAS. ”

WD Red Plus 10TB NAS Hard Disk Drive - 7200 RPM Class SATA 6Gb/s, CMR, 512MB Cache, 3.5 Inch - WD100EFGX