Internal Hard Drives
Toshiba 16TB N300 7200 rpm SATA III 3.5" Internal NAS HDD
- 16TB Storage Capacity
- 3.5" Form Factor
- SATA III 6 Gb/s Interface
- 512MB Cache
Toshiba 16TB X300 Performance 3.5" CMR Internal Hard Drive
- 16TB Capacity
- 3.5" Form Factor
- 7200 rpm Rotational Speed
- 512MB Cache
Seagate 12TB IronWolf Pro 7200 rpm SATA III 3.5" Internal NAS HDD (CMR)
- 12TB Storage Capacity
- 3.5" Form Factor
- SATA III 6 Gb/s Interface
- 256MB Cache
CORSAIR 2TB MP700 PRO NVMe PCIe 5.0 M.2 Internal SSD (Water Block)
- 2TB Storage Capacity
- M.2 2280 Form Factor
- PCIe 5.0 x4 Interface
- 12,400 MB/s Sequential Read Speeds
Toshiba 14TB X300 Pro Performance 3.5" CMR Internal HDD
- 14TB Capacity
- 3.5" Form Factor
- 7,200 rpm Rotational Speed
- 512MB Cache
WD 16TB Gold 7200 rpm SATA III 3.5" Internal Enterprise HDD
- 16TB Storage Capacity
- 3.5" Form Factor
- SATA III 6 Gb/s Interface
- 512MB Cache
WD 6TB Gold 7200 rpm SATA III 3.5" Internal Enterprise HDD (2-Pack)
- 6TB Storage Capacity
- 3.5" Form Factor
- SATA III 6 Gb/s Interface
- 256MB Cache
Seagate 12TB Exos X24 7200 rpm SAS III 12 Gb/s 3.5" Internal HDD (OEM)
- 12TB Storage Capacity
- 3.5" Form Factor
- SAS III 12 Gb/s Interface
- 512MB Cache
WD 6TB Red Pro 7200 rpm SATA III 3.5" Internal NAS HDD (2-Pack)
- 12TB Storage Capacity (2 x 6TB)
- 3.5" Form Factor
- SATA III 6 Gb/s Interface
- 256MB Cache
Toshiba 18TB X300 Performance 3.5" CMR Internal Hard Drive
- 18TB Capacity
- 3.5" Form Factor
- 7,200 rpm Rotational Speed
- Cache
Toshiba 18TB N300 7200 rpm SATA III 3.5" Internal NAS HDD
- 18TB Capacity
- 3.5" Form Factor
- SATA III 6 Gb/s Interface
- 512MB Cache
Panasonic 1TB FZ-VSD401T1U OPAL SSD (Main Drive)
- For TOUGHBOOK 40
- Compact M.2 Form Factor
- Protective Cage
- FIPS 140-2 Hardware Encryption
Synology 12TB HAT3310 Plus Series SATA III 3.5" Internal NAS HDD
- 12TB Storage Capacity
- 3.5" Form Factor
- SATA III 6 Gb/s Interface
- 512MB Cache
Toshiba 18TB N300 7200 rpm SATA III 3.5" Internal NAS HDD
- 18TB Storage Capacity
- 3.5" Form Factor
- SATA III 6 Gb/s Interface
- 1GB Cache
Toshiba 8TB N300 7200 rpm SATA III 3.5" Internal NAS HDD (2-Pack)
- 8TB Storage Capacity per Drive
- 3.5" Form Factor
- SATA III 6 Gb/s Interface
- 512MB Cache
Silicon Power 4TB Endura ED90 NVMe PCIe 4.0 M.2 Internal SSD
- 4TB Storage Capacity
- M.2 2280 Form Factor
- PCIe 4.0 x4 Interface
- Max Read Speeds up to 5000 MB/s
Panasonic 1TB FZ-V2S401T1U OPAL SSD (2nd Drive)
- For TOUGHBOOK 40 Left Expansion Area
- Shock-Mounted 2.5" Form Factor
- Protective Cage
- FIPS 140-2 Hardware Encryption
WD 18TB Gold 7200 rpm SATA III 3.5" Internal Enterprise HDD
- 18TB Storage Capacity
- 3.5" Form Factor
- SATA III 6 Gb/s Interface
- 512MB Cache
WD 18TB Red Pro 7200 rpm SATA III 3.5" Internal NAS HDD
- 18TB Storage Capacity
- 3.5" Form Factor
- SATA III 6 Gb/s Interface
- 512MB Cache
Toshiba 16TB X300 Pro Performance 3.5" CMR Internal HDD
- 16TB Capacity
- 3.5" Form Factor
- 7,200 rpm Rotational Speed
- 512MB Cache
WD 18TB UltraStar DC HC550 7200 rpm SAS-3 3.5" Internal HDD (OEM)
- 18TB Storage Capacity
- 3.5" Form Factor
- SAS-3 12 Gb/s Interface
- 512MB Cache
Toshiba 18TB N300 PRO 7200 rpm SATA III 3.5" Internal NAS HDD
- 18TB Storage Capacity
- 3.5" Form Factor
- SATA III 6 Gb/s Interface
- 1GB Cache
WD 4TB Blue 5400 SATA III 3.5" Internal HDD Kit (4-Pack)
- 4TB Storage Capacity
- 3.5" Form Factor
- SATA III 6 Gb/s Interface
- 256MB Cache
Toshiba 20TB N300 7200 rpm SATA III 3.5" Internal NAS HDD
- 20TB Storage Capacity
- 3.5" Form Factor
- SATA III 6 Gb/s Interface
- 1GB Cache
Seagate 16TB IronWolf Pro 7200 rpm SATA III 3.5" Internal NAS HDD (CMR)
- 16TB Storage Capacity
- 3.5" Form Factor
- SATA III 6 Gb/s Interface
- 256MB Cache
TEAMGROUP 4TB T-FORCE GE PRO NVMe PCIe 5.0 M.2 Internal SSD
- 4TB Storage Capacity
- PCIe 5.0 x4 / NVMe 2.0 Interface
- Sequential Reads up to 14,000 MB/s
- Sequential Writes up to 11,800 MB/s
Transcend 128GB SSD370S SATA III 2.5" Internal SSD
- 128GB Internal SSD
- 2.5" Form Factor with 7mm Height
- SATA III 6 Gb/s Interface
- Sequential Read 560 MB/s
WD 16TB UltraStar DC HC550 7200 rpm SAS-3 3.5" Internal HDD
- 16TB Storage Capacity
- 3.5" Form Factor
- SAS-3 12 Gb/s Interface
- 512MB Cache
Learning About Internal Hard Drives
Every computer needs an internal hard drive to run, whether it's a desktop at the office or a laptop used for gaming. The one you need and how it works both depend on the type of computer, as well as your intended usage. Choosing a new hard drive, or adding the right one to your custom-built machine, can be a significant upgrade.
What's the Difference Between an Internal and an External Hard Disk?
Essential computer components, internal hard disks feature the boot files needed for the operating system to load. They also require more steps to install than an external hard drive, which usually connects simply via USB. An internal hard drive stores data just like an external one does, but it can also be configured in various ways to create separate spaces for different files. External hard drives can also be placed in enclosures when running back-ups.
What's an Internal Hard Drive Cache?
One feature you may see listed on an internal hard disk is the disk cache. This piece of dedicated RAM boosts the disk's performance and allows data to load quicker.
What's an Internal Solid State Drive?
Most hard drives that store data on physical discs have several moving components such as disc platters and read/write heads. By contrast, internal solid state drives have no moving parts and operate using electrical signals that move across circuits. This causes less vibration and wear on the drive, making it last longer, and keeps your data with greater integrity.
What's a SATA Internal Hard Drive?
SATA, or serial ATA, is a common interface type that many hard drives use. It allows for rapid file transfer, and is the new standard for most computers.
How Do You Install an Internal Hard Drive (HDD)?
Many internal hard drives are relatively simple to install by simply sliding them into place in the drive bay. It's always possible to upgrade or repair a computer by removing its existing or factory-installed drive, replacing it with a new one. PC towers usually need to have the side removed to access the drive, while laptops will often have a bottom panel held in place with screws. Make sure the bay is large enough to accommodate the drive, which will be either a 2.5-inch or a 3.5-inch internal hard drive. Also, remember to take care when handling a hard drive, as static electricity and magnets can potentially harm data. For a hard drive enclosure, simply insert the drive into the slot.
Choosing an Internal Hard Drive
Hard drives often have hundreds of gigabytes or even terabytes of storage space. Choose one with sufficient storage for your needs, as movie and other media files take up quite a lot of space. In addition, look at the read/write speed to know how efficient you can expect performance to be.
B&H Photo and Video has a wide selection of hard drives so you can get the performance you desire.

