Internal SSDs

Fast and durable, internal solid state drives (SSDs) can help you quickly access your data, whether you’re working, gaming, or streaming content. 

What is an internal solid state drive? 

Internal SSDs use NAND — a kind of flash memory — to store your data, deliver on speed, and drive performance. When comparing SSDs to HDDs (hard disk drives), you can count on internal SSDs to:   

  • Load faster with less lag  
  • Be lightweight and more efficient  
  • Be durable — resistant to drops and bumps  
  • Run cooler and quieter 

Use an internal SSD for everything from creating and sharing photos to pro-level gaming and multi-tasking. Learn more about choosing between an SSD and HDD

Internal SSDs vs. External SSDs

Wondering what the difference is between internal SSDs vs. external SSDs?

Internal SSDs connect to your computer with a SATA (Serial Advanced Technology Attachment) or PCIe® (Peripheral Component Interconnect Express) connection.

External SSDs are portable devices that can be plugged into your computer via outside ports. Because they use SATA or PCIe, internal SSDs are faster than external SSDs.  

NVMe vs. SATA 

If you’re shopping for the fastest internal SSD, choose NVMe™ (Non-Volatile Memory Express) vs. SATA. NVMe, which connects to your laptop or desktop PC via the PCIe® interface, can hit speeds as high as 7.5GB per second1. Compare this to SATA, which typically tops out at 500MB per second.   


A communications protocol optimized to handle high bandwidth SATA transfer, with up to 4 lanes per device. Supports up to 1000MB/s per lane with PCIe interface.

NVMe vs SATA diagram


A communications protocol optimized for spinning magnetic disks. Supports up to 600MB/s transfer rate (SATA 6GB/s).


Internal SSDs for PC Gaming

Enhance your competitive gaming experience with a WD_BLACK internal SSD that meets your storage needs and boosts performance even higher. 

Room for everything 

With capacities up to 4TB2, internal SSDs let you store your favorite games while still having room to add the latest releases and newest updates.  

Peak performance 

WD_BLACK internal SSDs deliver on speed so you can boot your system and load titles quickly for responsive gaming.  

Flexible form factor

Compatible with desktop PCs and laptops, a WD_BLACK internal SSD gives you the competitive edge — whether you’re gaming at home or on the go.  

Your backup has arrived

Top-tier internal SSD speeds and capacity are critical to gaming. Enjoy pro-level play with a WD_BLACK SSD.  

WD Blue & WD Green

Internal SSDs for Everyday Computing

Speed up your daily computing — from web browsing and shopping to student projects and casual content creation — with a WD Blue or WD Green internal SSD.  


Your PC, revamped 

Upgrade older computers with a WD Blue or WD Green internal SSD, which can significantly accelerate everyday tasks with reduced lag and load times.  


Power saver

WD Blue and WD Green internal SSDs help keep your PC up and running longer so you can get more done between charges.  


Robust data protection 

Our shock-resistant internal SSDs help protect your data from drops or bumps. And built-in error correction technology provides long-lasting reliability.  

Power to the creators

Choose one of our SATA or NVMe internal SSDs to help you take on day-to-day tasks with ease. 

WD Red

Internal SSDs for NAS Use

Customize your NAS (network attached storage) with a WD Red internal SSD that can handle around-the-clock operations involving heavy read/write loads.


Fast-caching storage

From virtualization to 4K and 8K video editing, quickly access and work on big files in multi-user NAS environments with a fast-caching WD Red internal SSD. 


24/7 NAS solutions

WD Red internal SSDs are tried and tested just for NAS. Our drives help power 24/7 operations running intensive, mission-critical applications. 


Scalable capacity

Scale up and optimize NAS systems to meet your storage needs with a WD Red internal SSD. Capacities range from 250GB to 4TB. 

Always on, always ready

Purpose-built for NAS, WD Red internal SSDs empower you to quickly deploy the most demanding applications.

Ultrastar and WD Gold

Internal SSDs for Data Center

Enabling faster intelligence and access to critical data, our internal SSDs deliver predictable throughput for high-transaction workloads to meet the growing digital demands of your business applications.


Accelerate your business

Supercharge data center workloads so you can achieve maximum throughout and transform your data into actionable insights.


Balance performance & capacity

Our NAND innovations — in both vertical and lateral scaling — allow greater capacity in a smaller die with fewer layers.


Drive data intelligence

Access, read, and write datasets with ultra-low latency so you can respond rather than react to changing needs.

Faster access to mission-critical data

Deploy one of our internal SSDs to give your dynamic data center environment the workload flexibility and enterprise-grade protection it needs.

1. Based on read speed. 1 MB/s = 1 million bytes per second. Based on internal testing; performance may vary depending upon host device, usage conditions, drive capacity, and other factors.
2. 1TB = 1 trillion bytes. Actual user capacity may be less depending on operating environment.