Internal Drives
6 products from 2 brands, including Western Digital, Synology. Prices from $337.95 to $871.95, including GST. 1 ship within 1-2 business days.
Shop 3.5-inch SATA hard drives for desktop computers, NAS enclosures and compatible surveillance recorders. This range includes Western Digital and Synology models for adding bulk storage, replacing a failed disk or expanding a multi-drive system. Choose a general desktop drive for everyday files, or a NAS or surveillance model suited to continuous operation.
Showing all 6 results
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Western DigitalWestern Digital 6TB WD60EFPX Red Plus SATA III 3.5" Internal NAS HDD
$686.95 incl. GST Ships in 1-2 weeksAdd to cart -
Western DigitalWestern Digital 2TB Purple Surveillance Hard Drive
$337.95 incl. GST Ships in 1-2 weeksAdd to cart -
SynologySynology 6TB HAT3300 Plus 5400 rpm SATA III 3.5" Internal NAS HDD
$667.95 incl. GST Ships in 1-2 business daysAdd to cart -
Western DigitalWestern Digital Blue 4TB SATA 3.5" 5400RPM 256MB HDD
$395.95 incl. GST On backorder, dispatch date to be confirmedAdd to cart -
Western DigitalWestern Digital 8TB Red Plus 5640 rpm SATA III 3.5" Internal NAS HDD
$871.95 incl. GST Ships in 1-2 weeksAdd to cart -
Western DigitalWestern Digital 2TB Caviar Black 3.5" SATA Internal Hard Drive
$337.95 incl. GST Ships in 3-5 business daysAdd to cart
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About the Internal Drives range
Compare capacity, spindle speed, cache, recording technology and intended workload. Capacity determines how much data the drive holds, while 5400 rpm models generally suit quieter, lower-power storage and higher-speed models can offer quicker access. Cache size may affect burst transfers, but it is not a substitute for an SSD. For NAS use, check whether the model is rated for multi-drive operation and RAID. Surveillance drives are designed for compatible recorders and sustained video recording. Search terms include 3.5-inch HDD, SATA III hard drive, desktop hard drive, NAS HDD and surveillance hard drive.
Confirm the host device accepts a 3.5-inch drive and has a compatible SATA data connection, available power and enough supported capacity. SATA III drives can work with older SATA systems, but the host may limit performance. Do not confuse 3.5-inch drives with 2.5-inch laptop drives or M.2 SSDs. Check the NAS or recorder compatibility list, bay count and RAID requirements before ordering. This category is organised around 3.5-inch SATA hard drives, with general desktop, NAS and surveillance options from Western Digital and Synology.
Internal Drives questions
Will a 3.5-inch SATA hard drive work in my desktop PC?
It will work if the computer has a spare 3.5-inch drive bay, a compatible SATA data port and an available SATA power connector. Check the motherboard, case clearance and operating system support before ordering. Some compact or all-in-one computers cannot accept a 3.5-inch drive.
Can I use a desktop HDD in a NAS?
A desktop hard drive may be detected by a NAS, but it may not suit continuous multi-drive operation. Check the NAS maker's compatibility list and choose a NAS-rated model where required. Also confirm supported capacity, RAID requirements, bay count and the drive's recording technology.
What is the difference between a NAS hard drive and a surveillance hard drive?
NAS hard drives are designed for multi-drive enclosures, shared files and RAID workloads. Surveillance hard drives are designed for compatible video recorders and sustained camera recording. Select the type that matches the host system rather than choosing by capacity alone.