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Internal Hard Drives

Magnetic disk-based storage for inside your computer or data center, delivering a cost-effective, reliable way to manage large data sets and content libraries.

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What is an Internal Hard Drive?

An internal hard drive is installed inside a desktop, laptop, server, or NAS system to store your operating system, applications, and files. It provides high-capacity, reliable storage for everything from everyday computing to managing large data sets, video surveillance footage, or shared network access. Internal drives are a cost-effective solution for long-term, always-on storage in both personal and professional environments.

Why Use an Internal HDD?

Internal HDD capacities up to 28TB1,2,*

Endurance up to 550TB/year3,*

Reliability up to 2.5M hours MTBF4,*

Options for NAS, data center, surveillance, and more

*Applies to select models only.

Internal HDDs for Gaming

Dominate your next gaming session with WD_BLACK internal HDDs that can boost capacity and give your rig a serious upgrade.

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More space, more games

WD_BLACK internal hard drives have enough space to save huge gaming libraries, with capacities up to 10TB.1,5

Elite performance

Take your gaming storage to the next level with internal HDDs that deliver up to 256Mib of DRAM cache.5

Reliability for the win

StableTrac™ Technology can stabilize select drives’ motor shafts and platters to boost performance and durability. 

Internal HDDs for Everyday Use

Get the most out of your daily content — from documents and family photos to your favorite movies and more — with a WD Blue internal hard drive. 

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Your PC, upgraded

Revamp older computers with a WD Blue internal HDD to boost capacity and everyday performance.

Efficient power

Streamline your computer setup with WD Blue internal HDDs to help keep power consumption to a minimum. 

Competitive compatibility

Compatible across hundreds of systems, making it easy to upgrade your PC and get routine tasks back on track. 

Internal HDDs for NAS

Turn your NAS (Network Attached Storage) system into an easily accessible, digital media powerhouse with the WD Red family of internal HDDs, offering up to 26TB1,6 of space.

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Maximum power

Help your NAS system smoothly stream, share, and store your favorite content — wherever you have internet.

24/7 NAS solutions

Optimized for 24/7 workloads with solutions for families, home offices, and small and mid-sized teams’ IT hubs.

Scalable storage

Build a NAS array tailor-made for your needs with easily customizable, widely compatible drives up to 26TB1,6 each.

Internal HDDs for Smart Video Surveillance

WD Purple internal HDDs are custom-made for smart video surveillance and recording, with an intense workload rating of up to 550TB7 per year.

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Perfect playback

Improve ATA streaming to help minimize frame loss and improve overall playback with Western Digital’s AllFrame technology.

Rugged dependability

Designed for the rigors of NVR and DVR video surveillance, including temperature fluctuations, vibrations, and more.

Serious scalability

Handle up to 64 single-stream HD cameras8, helping you scale faster and smarter.

Internal HDDs for Data Center

Designed for public and private cloud environments, our internal HDDs for data centers help you store massive amounts of data reliably, cost effectively, and energy efficiently.

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Store more, do more

HelioSeal, which seals helium inside our hard drives, allows more disks, quieter operation, and low power usage.

Fast data, faster decisions

The latest in HDD technology, OptiNAND adds a flash layer to offload expanded metadata, reducing DRAM need.

Scale efficiently, effectively

A breakthrough in HDD tech, eAMR enables higher areal density through increased bits per inch on HDD tracks.

Learn More About Internal HDDs

Higher performance. Growing capacities. Even greater reliability. From integrating iNAND embedded flash devices to sealing drives with helium to reduce friction, our most advanced hard drives elevate traditional HDD architecture to push data storage further.

Disclosures

  1. 1TB = one trillion bytes. Actual user capacity may be less depending on operating environment. For RAID products, storage capacity is based on RAID 0 mode, unless otherwise stated.
  2. Applies only to Ultrastar DC HC680.
  3. Applies only to Ultrastar DC HC680, Ultrastar DC HC650, Ultrastar DC HC570, Ultrastar DC HC560, Ultrastar DC HC550, Ultrastar DC HC530, Ultrastar DC HC520, Ultrastar DC HC330, Ultrastar DC HC320, Ultrastar DC HC310, Ultrastar DC HA210, WD Red Pro HDD, WD Gold SATA HDD (20TB models and up), and WD Purple Pro HDD.
  4. Applies only to Ultrastar DC HS760, Ultrastar DC HC680, Ultrastar DC HC670, Ultrastar DC HC650, Ultrastar DC HC580, Ultrastar DC HC570, Ultrastar DC HC560, Ultrastar DC HC550, Ultrastar DC HC530, Ultrastar DC HC520, WD Gold SATA HDD (12TB models and up), WD Red Pro HDD (14TB models and up), and WD Purple Pro HDD (12TB models and up).
  5. Applies only to WD_BLACK 3.5-Inch Gaming Hard Drive.
  6. Applies only to WD Red Pro NAS Hard Drive.
  7. Terabytes written values calculated using JEDEC client workload (JESD219) and vary by product and capacity.
  8. Single stream per camera @ 3.2Mbps (1080p, H.265, 25 fps). Results may vary depending on camera resolution, file format, frames per second, software, system settings, video quality, and other factors. Applies only to WD Purple Surveillance Hard Drive (6TB and up) and WD Purple Pro Surveillance Hard Drive.
    *Applies to select models only.