WD Purple 4TB Surveillance Hard Disc Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 8.9cm - WD40PURX
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.
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.
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.
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.
in 6 offers
The lowest price for WD Purple 4TB Surveillance Hard Disc Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 8.9cm - WD40PURX right now is $202.64 at eBay.com.au, compared across 4 retailers.
The all-time low was $112.92 on 22 Jan 2026 — today's price is 79% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 13 Aug 2026.
Last updated at 13/08/2026 11:42:35
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Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
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Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
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| Compatibility Information | |
| Designed For | WD My Cloud EX2 WD My Cloud EX4 |
| Environmental Parameters | |
| Min Operating Temperature | 0 °C |
| Max Operating Temperature | 65 °C |
Western Digital WD40PURX 4TB 5.4K RPM 3.5'' SATA Internal HDD - Purple
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Western Digital Purple 4tb Wd40purx 5400rpm Sata 3.5" Pc Cctv Hdd Hard
Delivery $10.90
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Western Digital Purple 4tb Wd40purx 5400rpm Sata 3.5" Pc Cctv Hdd Hard
Delivery $10.90
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
WD Purple 4TB Surveillance Hard Disk Drive - 5400 RPM Class SATA 6 Gb/s 64MB Cache 3.5 Inch - WD40PURX
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| Compatibility Information | |
| Designed For | WD My Cloud EX2 WD My Cloud EX4 |
| Environmental Parameters | |
| Min Operating Temperature | 0 °C |
| Max Operating Temperature | 65 °C |
