Hard disk drives

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Hard disk drives | Choosing the right hard disk drive
A hard disk drive is a non-volatile memory hardware device that permanently stores data from a computer or server. Hard disk drives keep the stored data even when they are turned off. The most common technology uses fast rotating magnetic platters. These are traditional HDD (hard disk drives). They are increasingly being replaced by SSDs, which are solid state semiconductor memory devices.
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external hard disk drive
external hard disk drive
Canvio Flex

Capacity: 4, 2, 1 TB

... and tablets*, this drive allows you to seamlessly access data and share between devices. Enjoy the convenience and flexibility for your storage needs with the Canvio Flex – your smart storage companion. 2.5“ External ...

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Toshiba Europe Storage Device Division
internal hard disk drive
internal hard disk drive
AL14SXBxxEx Series

Capacity: 900, 600, 300 GB

The 12.0 Gbit/s SAS interface AL14SX Series Enterprise Performance HDDs are Toshiba’s highest-performing 15,000rpm model line. Engineered for mission critical IT operations, an array of models are available with 512 ...

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Toshiba America Electronics Components
external HDD
external HDD
K338

Capacity: 1, 2, 3, 4 TB

... Connect the devlce through the data cable, plug and play, no need to set up Connecting to the MAC without formatting the Portable HDD

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Netac Technology Co.,Ltd.
external HDD
external HDD
K391

Capacity: 1, 2 TB

Hard Drives Hâve A Price But Data is Priceless Netac K391 Fingerprint Encryption Portable HDD Fingerprint Password A smart security lock that cannot be copied Fingerprints are unrepeatable ...

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Netac Technology Co.,Ltd.
external HDD
external HDD
K390

Capacity: 512, 1, 2 GB

High-speed USB 3.0 Netac Portable HDD K218, high-speed transmission interface USB3.0, compatible downwards to USB2.0 Independent button password input Password inputting trace in the computer. Prevent hackers steal ...

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Netac Technology Co.,Ltd.
internal hard disk drive
internal hard disk drive
HD4000Gb

Capacity: 4,000 GB

Hard Disk SATA 4000 GB, MTBF, used for digital recording in video-surveillance systems. THE PRICE INCLUDES REQUIRED ASSEMBLING AND SETTING IN OUR LABORATORY.

internal hard disk drive
internal hard disk drive
HD6000Gb

Capacity: 6,000 GB

Hard Disk SATA 6000 GB, MTBF, used for digital recording in video-surveillance systems. THE PRICE INCLUDES REQUIRED ASSEMBLING AND SETTING IN OUR LABORATORY.

internal hard disk drive
internal hard disk drive
HD2000Gb

Capacity: 2,000 GB

Hard Disk SATA 2000 GB, MTBF. Specifically designed for digital recorders for CCTV systema. It includes assembly and setting in our laboratory.

internal HDD
internal HDD
Exos X series

Capacity: 8 TB - 18 TB

Exos X Series Hard Drives The most scalable drives in the datasphere, Exos X series hard drives integrate the latest technology in support of a secure ...

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Seagate
external hard disk drive
external hard disk drive
STHYx000800 series

Capacity: 1, 2, 4 TB

... computer files the easy way by pairing LaCie USB 3.0 Drive with Time Machine. It’ll run frequent, automatic backups whenever you’re plugged in. USB 3.0 Drive Is Plug-and-Play LaCie USB 3.0 Drive ...

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LACIE
internal hard disk drive
internal hard disk drive
SDM5A 7P/180D LP(H)

Capacity: 1 GB - 16 GB

... ATA Secure Erase and S.M.A.R.T. Functions Global Wear-Leveling and Block Management Apacer’s SDM5A (SATA Disk Module 5A) is our next generation disk-on-module (DOM) series that offers elevated speed boost ...

external hard disk drive
external hard disk drive
Spider-NAS

Capacity: 250 GB

... Features Removable Hard Disk The Spider-NAS features a high-performance 2.5 inch removable solid-state drive as storage media. Each Spider-NAS is shipped with a 250 GB solid-state drive. ...

How to choose this product
hard-disk-drive

A hard disk drive stores data permanently, contrary to random access memory (RAM). It is connected to the motherboard via an IDE, SCSI or SATA interface, or via a USB port, a firewire or an Ethernet port, in the case of an external hard drive.

Applications

Hard disk drives are used as mass storage devices in computers or in networks.

Technologies

These drives are composed of stacked platters kept in rotation by a motor. A series of intermediary magnetic heads read and write data on the platters' surface.

Drive capacity has increased significantly faster than speed, which is limited by mechanics. One terabyte is a common standard. Hard drives feature cache memory to compensate for data access delays.

In low-capacity applications, hard drives are more and more often replaced by electronic memories, such as SD cards or SSD disks. They are composed of flash memory, feature no mechanical parts and withstand vibrations better, but are more costly.

How to choose

The drive's capacity and data access speed are the main choice criteria. Furthermore, determine the required interface type, whether the disk should be external or not and the form factor. The harshness of the working environment also should be considered.

Advantages

- Mass data storage

Disadvantages

- Data access delays