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Synology HAT3310 16TB Plus Series SATA III 3.5" Internal NAS HDD (HAT3310-16T)
- Height (maximum): 26.11mm
- Width (maximum): 101.85mm
- Length (maximum): 147mm
- Model #: HAT3310-16T
- $749.99 –
- $7.99 Shipping
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TOSHIBA N300 Pro HDWG82CXZSTB 22TB 7200 RPM SATA 6.0Gb/s 3.5" Hard Drives
- Brand: TOSHIBA
- Series: N300 Pro
- Capacity: 22TB
- RPM: 7200 RPM
- Model #: HDWG82CXZSTB
- $801.99 –
- More options from $801.99 - $810.22
- $9.90 Shipping
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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 NE-ST12000VN0008
- Brand: Seagate
- Series: IronWolf
- Capacity: 12TB
- RPM: 7200 RPM
- Model #: ST12000VN0008
- $594.99 –
- More options from $534.99 - $1,016.08
- $9.99 Shipping
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WD Gold 16TB Enterprise Class Hard Disk Drive - 7200 RPM Class SATA 6Gb/s 512MB Cache 3.5 Inch - NE-WD161KRYZ
- Height (maximum): 26.10mm
- Width (maximum): 101.60mm
- Length (maximum): 147.00mm
- Model #: WD161KRYZ
- $534.19 –
- More options from $534.19 - $1,179.30
- Free Shipping
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WD Black WD8002FZBX 8TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drives
- Brand: WD
- Series: Black
- Capacity: 8TB
- RPM: 7200 RPM
- Model #: WD8002FZBX
- $673.35 –
- More options from $361.39 - $673.35
- Free Shipping
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WD Gold 26TB Enterprise Class Hard Disk Drive - 7200 RPM Class SATA 6Gb/s 512MB Cache 3.5 Inch - WD261KRYZ
- Height (maximum): 26.10mm
- Width (maximum): 147.00mm
- Length (maximum): 101.60mm
- Model #: WD261KRYZ
- $1,149.99 –
- More options from $1,149.99 - $1,458.99
- Free Shipping
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Seagate Constellation ES.3 ST4000NM0023 4TB 7200 RPM 128MB Cache SAS 6Gb/s 3.5" Enterprise Internal Hard Drive Bare Drive
- Average Latency: 4.16ms
- Height (maximum): 26.10mm
- Width (maximum): 101.85mm
- Length (maximum): 147.00mm
- Model #: ST4000NM0023
- $165.00 –
- More options from $165.00 - $277.90
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WD Gold 12TB Enterprise Class Hard Disk Drive - 7200 RPM Class SATA 6Gb/s 512MB Cache 3.5 Inch - WD122KRYZ
- Brand: WD
- Series: Gold
- Capacity: 12TB
- RPM: 7200 RPM
- Model #: WD122KRYZ
- $557.99 –
- More options from $519.99 - $1,058.90
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WD Purple WD23PURZ 2TB Hard Drive - 3.5" Internal - SATA (SATA/600) - Conventional Magnetic Recording (CMR) Method - Video Surveillance System Device Supported - 3 Year Warranty
- Recording Technology: CMR
- Height (maximum): 26.1mm
- Width (maximum): 101.3mm
- Length (maximum): 147mm
- Model #: WD23PURZ
- $199.99 –
- More options from $149.99 - $999.00
- Free Shipping
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Western Digital Red Pro WD260KFGX 26TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" HD OEM
- Brand: Western Digital
- Series: Red Pro
- Capacity: 26TB
- RPM: 7200 RPM
- Model #: WD260KFGX
- $1,149.99 –
- More options from $1,029.93 - $1,676.88
- Free Shipping
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WD Blue 4TB Desktop Hard Disk Drive - 5400 RPM SATA 6Gb/s 256MB Cache 3.5 Inch - WD40EZAX
- Recording Technology: CMR
- Height (maximum): 26.10mm
- Width (maximum): 101.60mm
- Length (maximum): 147.00mm
- Model #: WD40EZAX
- $204.99 –
- More options from $139.99 - $373.69
- $29.99 Shipping
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WD Black WD102FZBX 10 TB Hard Drive - 3.5" Internal - SATA (SATA/600) - Conventional Magnetic Recording (CMR) Method WD102FZBX
- Brand: Western Digital
- Series: Black
- Capacity: 10TB
- RPM: 7200 RPM
- Model #: WD102FZBX
- $524.99 –
- More options from $441.22 - $768.56
- Free Shipping
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WD Black WD4006FZBX 4TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Hard Drives
- Brand: WD
- Series: Black
- Capacity: 4TB
- RPM: 7200 RPM
- Model #: WD4006FZBX
- $339.99 –
- More options from $249.99 - $339.99
- $10.99 Shipping
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- Part Number: ST6000VN006
- Model #: ST6000VN006
- $369.99 –
- More options from $234.99 - $383.13
- $10.99 Shipping
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Seagate IronWolf Pro ST8000NT001 8TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive
- Recording Technology: CMR
- Height (maximum): 26.11mm
- Width (maximum): 101.85mm
- Length (maximum): 146.99mm
- Model #: ST8000NT001
- $608.56 –
- More options from $348.11 - $646.08
- Free Shipping
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Toshiba N300 12TB NAS 3.5-Inch Internal Hard Drive - CMR SATA 6 Gb/s 7200 RPM 512 MB Cache - HDWG51CUZSVA
- Brand: TOSHIBA
- Series: N300
- Capacity: 12TB
- RPM: 7200 RPM
- Model #: HDWG51CUZSVA
- $499.99 –
- Free Shipping
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Synology HAT3310 12TB Plus Series SATA III 3.5" Internal NAS HDD (HAT3310-12T)
- Height (maximum): 26.11mm
- Width (maximum): 101.85mm
- Length (maximum): 147mm
- Model #: HAT3310-12T
- $628.99 –
- $7.99 Shipping
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WD Gold WD242KRYZ 24 TB Hard Drive - 3.5" Internal - SATA (SATA/600) - Conventional Magnetic Recording (CMR) Method - Storage System, Data Center, Server Device Supported - 7200rpm
- Height (maximum): 26.10mm
- Width (maximum): 147.00mm
- Length (maximum): 101.60mm
- Model #: WD242KRYZ
- $1,733.90 –
- More options from $947.54 - $1,733.90
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- $529.99 –
- More options from $499.99 - $695.00
- Free Shipping
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WD Red Pro 10TB NAS Hard Disk Drive - 7200 RPM Class SATA 6Gb/s 256MB Cache 3.5 Inch - WD102KFBX
- NAND Flash Memory Type: Others
- Recording Technology: CMR
- Features: NAS for Big Business Increase the efficiency and productivity of your business with WD RedPro hard drives for up to 16 bay NAS systems. WD Red Pro comes equipped with NASware 3.0, which increases system compatibility allowing for seamless integration with your existing network infrastructure. Add value to your business by
- Usage: Enterprise NAS Hard Drives
- Model #: WD102KFBX
- $524.99 –
- More options from $369.97 - $892.11
- $9.99 Shipping
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Synology HAT3320 8TB Plus Series SATA HDD 3.5"
- Brand: Synology
- Series: Plus Series
- Model: HAT3320-8T
- Capacity: 8TB
- Model #: HAT3320-8T
- $479.99 –
- More options from $306.22 - $479.99
- $7.99 Shipping
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Seagate Exos X24 24TB 7200 RPM SATA 512MB Cache 6.0Gb/s 3.5-Inch Enterprise Internal Hard Drives (ST24000NM002H)
- Average Latency: 4.16ms
- Height (maximum): 26.1mm
- Width (maximum): 101.85mm
- Length (maximum): 147mm
- Model #: ST24000NM002H
- $2,151.82 –
- More options from $821.22 - $2,151.82
- Free Shipping
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Synology HAT3300 4TB Plus Series SATA HDD 3.5"
- Height (maximum): 20.20mm
- Width (maximum): 101.85mm
- Length (maximum): 147mm
- Model #: HAT3300-4T
- $299.99 –
- $7.99 Shipping
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HGST Ultrastar 7K4000 HUS724040ALE640 (0F14683) 4TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Internal Enterprise Hard Drive Bare Drive
- Height (maximum): 26.1mm
- Parts: 2 yrs
- Labor: 2 yrs
- Model #: 0F14683
- $225.00 –
- Free Shipping
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Seagate Desktop HDD ST2000DM001 2TB 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
- Average Latency: 6Gb/s
- Height (maximum): 26.11mm
- Width (maximum): 101.60mm
- Length (maximum): 146.99mm
- Model #: ST2000DM001
- $129.00 –
- More options from $129.00 - $212.15
- $50.00 Shipping
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WD Purple Pro WD181PURP 18TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive
- NAND Flash Memory Type: Hard Drive
- Height (maximum): 26.10mm
- Width (maximum): 101.60mm
- Length (maximum): 147.00mm
- Model #: WD181PURP
- $839.99 –
- More options from $789.99 - $1,137.09
- Free Shipping
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Western Digital 22TB WD Gold Enterprise Class SATA Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, 512 MB Cache, 3.5" - WD221KRYZ
- Height (maximum): 26.10mm
- Width (maximum): 101.60mm
- Length (maximum): 147.00mm
- Model #: WD221KRYZ
- $954.99 –
- $9.99 Shipping
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- Average Seek Time: <12.0ms
- Average Write Time: <12.0ms
- Average Latency: 5.1ms
- Height (maximum): 20.20mm
- Model #: ST2000VN004
- $250.00 –
- Free Shipping
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Seagate Constellation.2 ST91000640NS 1TB 7200 RPM 64MB Cache SATA 6.0Gb/s 2.5" Enterprise-class Internal Hard Drive Bare Drive
- Average Latency: 4.16ms
- Height (maximum): 15mm
- Width (maximum): 70.1mm
- Length (maximum): 100.45mm
- Model #: ST91000640NS
- $140.00 –
- More options from $80.00 - $159.08
- Free Shipping
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Seagate BarraCuda ST500DM009 500GB 7200 RPM 32MB Cache SATA 6.0Gb/s 3.5" Hard Drive Bare Drive
- Average Latency: 6Gb/s
- Height (maximum): 19.99mm
- Width (maximum): 101.60mm
- Length (maximum): 146.99mm
- Model #: ST500DM009
- $90.00 –
- More options from $90.00 - $151.11
- $50.00 Shipping
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Western Digital WD VelociRaptor WD5000HHTZ 500GB 10000 RPM 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive
- Average Latency: 6Gb/s
- Features: Ultra fast Rock-solid reliability High capacity Ultra-cool operation Advanced Format (AF) IcePack mounting frame Rotary Acceleration Feed Forward (RAFF) NoTouch ramp load technology Environmentally conscious Pre-emptive Wear Leveling (PWL)
- Usage: For Ultimate Performance
- Height (maximum): 1"
- Model #: WD5000HHTZ
- $99.99 –
- $50.00 Shipping
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- $369.99 –
- More options from $179.99 - $369.99
- Free Shipping
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WD Blue 500GB Desktop Hard Disk Drive - 7200 RPM SATA 6Gb/s 32MB Cache 3.5 Inch - WD5000AZLX
- NAND Flash Memory Type: Desktop
- Height (maximum): 26.10mm
- Width (maximum): 101.60mm
- Length (maximum): 147.00mm
- Model #: WD5000AZLX
- $170.88 –
- More options from $92.55 - $171.04
- Free Shipping
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Toshiba MG04ACA400N 4TB 64MB Cache 7200RPM SATA III 6.0Gb/s 3.5" Internal Enterprise NAS Hard Drive - 5 Year Warranty
- Model #: MG04ACA400NNew
- $599.00 –
- Free Shipping
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Seagate Constellation CS ST3000NC002 3TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Enterprise Internal Hard Drive Bare Drive
- Average Seek Time: 9.5ms
- Average Write Time: 10.5ms
- Model #: ST3000NC002
- $125.00 –
- $50.00 Shipping
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WD Blue WD120EAGZ 12TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive
OUT OF STOCK
- Brand: WD
- Series: Blue
- Capacity: 12TB
- RPM: 7200 RPM
- Model #: WD120EAGZ
- COMING SOON
Internal Hard Drives
Need more storage for your games, images, music and movies? An internal hard drive upgrade or a second drive may be what you are looking for. Internal hard drives are used as main storage in desktop PCs, workstations, and servers. Nowadays, small form factor internal hard drives are used in consumer electronic products like mp3 players and digital cameras as well. Regardless of your application, Newegg.com presents an extensive selection of internal hard drive products for you to choose from, from hard drive manufacturers like Western Digital, Seagate, HItachi, LaCie, Maxtor and others.
Understanding Internal Hard Drive Specifications
When selecting a hard drive, there are two main things to consider: speed and capacity. Budget permitting, always go for the fastest drive you can. Speed is measured using the RPM figure a faster rotational speed means greater performance, especially in games, but may cause greater heat and noise. The capacity, measured in GB (gigabytes), should depend on your own storage requirements. A higher capacity drive will invariably cost more than a lower capacity drive, so a balance must usually be struck between capacity and cost. In addition, the hard drive interface IDE, SATA, or SCSI determine a drives application: IDE and SATA for personal storage and SCSI for enterprise, mission critical storage.
Bestselling Desktop Internal Hard Drives Reviews:
Anonymous
4/24/2026 9:44:50 AM
Synology 4tb disk
“ Installation was simple and the drive has performed well. ”
Synology 4TB HAT3300 Plus Series SATA III 3.5" Internal NAS HDD (HAT3310-4T)Anonymous
4/22/2026 11:30:39 AM
Delivered very quick and drive is as described.
“ This is the second drive I purchased this week from Newegg. ”
WD Red Plus 10TB NAS Hard Disk Drive - 7200 RPM Class SATA 6Gb/s, CMR, 512MB Cache, 3.5 Inch - WD100EFGXEric W.
4/17/2026 9:54:02 AM
Never had an issue with Iron Wolf
“ I've been using Iron Wolf drives (Pro and not pro) over the years, and have zero reason to try anything else. ”
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-NEAlex A.
4/15/2026 8:31:38 AM
Just works!
“ I bought this for use in an external 4-bay USB drive enclosure to add to 3 older Seagate Compute 8TB drives for a total formatted capacity of 43.6TB. ”
Seagate BarraCuda ST24000DM001 24TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare DriveKeith V.
4/9/2026 4:20:16 PM
High Capacity Plug and Play Drive
“ I bought this during the holiday deal so assumed there was a chance I got a questionable drive, but this is holding up just fine. ”
Seagate BarraCuda ST24000DM001 24TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drivedestruk
4/2/2026 2:08:29 PM
Good if you get one that works?
“ Overall, Im very pleased with this drive and would definitely recommend it. ”
Seagate BarraCuda ST24000DM001 24TB 7200 RPM 512MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare DriveKurt M.
3/2/2026 10:26:59 AM
Great as Usual
“ Hard drive for over 2 weeks no issues ”
Seagate IronWolf ST4000VN006 4TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard DriveRobert W.
2/20/2026 9:57:19 AM
No issues so far. Happy with drive performance
“ I purchased this on sale to use as an external drive for data storage and backups, though not in a raid or nas environment. ”
WD Red Plus 12TB NAS Hard Disk Drive - 7200 RPM Class SATA 6Gb/s, CMR, 512MB Cache, 3.5 Inch - WD120EFGX