Choosing the right hard drive for your needs maybe a tricky and confusing one. There are different types of drives for different types of applications. Knowing the application and specs of drive you using will save you tons of money and headaches.

Some of Digilogics favorite portable hard drives

Transcend StoreJet

Transcend StoreJet Available from Digilogic

]1 Transcend StoreJet Available from Digilogic

Transcend Information launched the Transcend StoreJet 25M3 in May 2010. The device is USB powered, eliminating the need for an external adapter, and its plug-and-play operation does not require drivers. The model offers an internal hard drive suspension system, valuable military-grade shock resistance, a One-Touch Auto-Backup button, and a fast USB 3.0 interface that is also backwards compatible with a USB 2.0 interface. This allows consumers to save time when copying large files because it greatly reduces transfer times. The USB 3.0/2.0 interface has a multicolor LED indicator, which can help buyers identify the drive’s connection type. Using the USB 2.0 mode makes the LED indicator light up orange while use of the USB 3.0 port causes the light to illuminate a bright-blue color. Transcend StoreJet 25M3 offers StoreJet Elite software. This feature allows buyers to back up emails, compress data to allow for more available disk space, and use password-protection via AES encryption for files. The device also offers a resilient anti-shock rubber outer case, a power-saving sleep mode, and a 5 Gb/s connection bandwidth.

Transcend StoreJet 25M3 1TB Portable Hard Drive Review Specs

  • Size: 129.5mm x 82.4mm x 20.4mm
  • Op. Voltage: USB DC 5V
  • Op. Temperature: 5°C (41°F) to 55°C (131°F)
  • Storage Media: 2.5″ SATA HDD
  • Weight: 216g
  • Certificates: CE, FCC, BSMI
  • Connection Interface: USB 2.0/3.0
  • Power Saving Mode: 10 mins
  • OneTouch Backup: Yes

Seagate Expansion 1TB 2.5″

Seagate Expansion Portable from digilogic

The Seagate Expansion portable hard drive is compact and perfect for on-the-go. Instantly add more storage space to your computer and take large files with you when you travel. Setup is simple and straightforward; simply connect a single USB cable and you are ready to go. The hard drive is powered from the USB cable, so there is no need for an external power supply. Plus, it is automatically recognized by the Windows® operating systems, so there is no software to install and nothing to configure. Saving files is easy – simply drag-and-drop. Take advantage of the fast data transfer speeds with the USB 3.0 interface by connecting to a SuperSpeed USB 3.0 port. USB 3.0 is backwards compatible with USB 2.0 for additional system compatibility.

Seagate Expansion 1TB 2.5″ Portable Hard Drive Review Specs

  • Size: 122.4mm x 81mm x 16mm
  • Op. Voltage: USB DC 5V
  • Op. Temperature: 5°C (41°F) to 55°C (131°F)
  • Storage Media: 2.5″ SATA HDD
  • Weight: 168g
  • Certificates: CE, FCC, BSMI
  • Connection Interface: USB 2.0/3.0
  • Power Saving Mode: 10 mins
  • OneTouch Backup: No

Different Hard Drives for Different Applications

Western Digital Drives Available from Digilogic

]3 Western Digital Drives Available from Digilogic

Hard drives have advanced so much in recent years that it is difficult to keep up with the times. Not only that, there are a wealth of different kinds of hard drives, sizes, RPM, and price points. It may become confusing as to why for e.g. a 1TB hard drive from manufacturer “A” costs R1000 and a 1TB hard drive from manufacturer “B” costs “R2000. Our instincts would be to just buy the cheaper option, because “hey, we could get two drives for the price of one of manufacturers “B” drives”, however having consider the application for the drive, it will make perfect sense why there are different price points. Some of these differences may include “is it for a desktop, for a server, RAID, CCTV or 24×7 video streaming, personal backup, laptop or notebook, etc”. The differences in these applications have a direct influence on the drives, manufacturing process, how accurately they spin at their rated RPM, read/write speeds, and if they have vibration sensors when used in servers and RAID environments.

Who would have thought that choosing the correct storage drive could be so in-depth?

Western Digital have introduced a color grading system that easily identifies the type of drives you need for a specific application.

Here are some applications that require specific storage drives.

  • Home PC
  • Gaming PC
  • Mobile
  • NAS (Network Attached Storage)
  • Datacenter
  • Surveillance
  • Audio Video

Home PC, Mobile and Laptop Devices

Western Digital Blue – Solid performance and reliablity for everyday computing

WD Blue Available From Digilogic

]4 WD Blue Available From Digilogic

Built to WD’s highest standards of quality and reliability, WD Blue offers the features and entry-level capacities that are ideal for your computing needs. WD Blue is designed by the brand that you trust with the quality you would expect for a tested, proven, everyday storage solution.

WD Blue storage is designed and manufactured with technology found in WD’s original award-winning desktop and mobile hard drives. WD Blue sets the baseline for everyday storage by consistently delivering improved performance over previous generations while successfully maintaining WD’s quality and reliability for over six generations. The difference is that our colors never fade, generation after generation.


Western Digital Green – Cool, quiet operation with massive capacity

WD Green Available From Digilogic

]5 WD Green Available From Digilogic

Heat has a large impact on the overall reliability of a HDD’s life over time. It can also lead to increased power consumption, the requirement of additional fans and increased fan operation, increased noise levels and the increased chance of failure. WD Green drives come equipped with WD GreenPower Technology which allows the drive to operate cooler with increased overall reliability.

Gaming PC, High Performance PC, Workstations

Western Digital Black – Maximum Performance for power computing.

WD Black Available From Digilogic

]6 WD Black Available From Digilogic

The latest WD Black desktop hard drives offer enhanced features that maximize system performance, allowing you to spend more time doing what you love most and less time waiting. WD Black is designed to intensify your PC experience with generous capacity and incredible performance, pushing the boundaries of personalization.

NAS and DataCenters

Western Digital Red – These drives are deigned and tested for use in a RAID environment.

WD Red Available From Digilogic

]7 WD Red Available From Digilogic

With superior technology that is driven to impress, WD Red is a reflection of the most extensive NAS partner compatibility-testing list that is available on the market*. That means when you buy a NAS enclosure, you can trust that WD Red will be the most compatible drive available. Our pride is in our product and our vision is shared with our customers.

Western Digital SE – Use in NAS and Direct Attached Storage. These drives offer a 5 year warrenty, significant performance increase for RAID systems up to 12 bays.

Designed for quality and reliability.

Datacenter drives undergo at least 5 million hours of functional testing, and over 20 million hours of comprehensive Interoperability testing in an extensive array of server and storage systems.

The Se is best suited for bulk cloud storage, replicated environments, content delivery networks (CDNs), SMB network attached storage (NAS), backup and archiving.

Surveillance, Audio Video and 24×7 Streaming

Western Digital Purple – Support for multiple concurrent video streams and ability to run 24/7 with MTBF of 1million hrs.

WD Purple Available From Digilogic

]8 WD Purple Available From Digilogic

WD Purple Surveillance Storage offers exclusive AllFrame technology to bring you premium reliability and peace-of-mind when installing your home or small to medium business security system. WD Purple’s exclusive firmware upgrades work with ATA streaming to reduce error pixilation and video interruptions that occur when desktop hard drives are incorrectly used as storage in security systems. WD Purple Surveillance Storage is built for 24/7, always-on, high-definition surveillance security systems that use up to eight hard drives and up to 32 cameras.


This is meant to be guide and by following the principles in this blog, you will be able to make an informed decision on the correct drive for your application. If you still unsure, please contact Digilogic, where we can advise on the correct drives, storage for your application. info@digilogic.co.za