WD Purple 4TB Surveillance HDD | 5400 RPM | CMR | WD43PURZ
Available in stock (54)
- 4TB Surveillance Storage | AllFrame Technology — Purpose-built for DVR and NVR systems with AllFrame reducing frame loss and improving video playback reliability
- 5400 RPM | SATA III 6Gb/s | 256MB Cache — Optimized for continuous 24/7 surveillance recording with lower power consumption than 7200 RPM drives
- Up to 64 Camera Support — Handles simultaneous streams from up to 64 IP cameras for high-density surveillance deployments
- 180TB/Year Workload Rating — Built for always-on 24/7 surveillance environments with higher endurance than desktop drives
- CMR Recording Technology — Conventional Magnetic Recording for reliable, consistent write performance in NVR and DVR environments
- 3.5" Form Factor | SATA III — Standard desktop drive bay size compatible with most NVR, DVR, and surveillance storage systems
- 3-Year Limited Warranty — Western Digital’s standard warranty for surveillance-grade hard drives
The WD Purple 4TB (WD43PURZ) is a purpose-built surveillance hard drive designed for continuous 24/7 recording in DVR and NVR systems. AllFrame technology reduces frame loss and improves video playback reliability compared to standard desktop drives — which are not optimized for the sustained sequential write workloads of surveillance recording. With support for up to 64 simultaneous IP camera streams and a 180TB/year workload rating, it handles high-density home and small business surveillance deployments reliably.
The 5400 RPM spindle keeps power consumption and heat generation low for always-on NVR and DVR systems, while the 256MB cache improves sequential write performance during multi-camera recording sessions. CMR recording ensures reliable performance in RAID-configured surveillance arrays. An ideal primary storage drive for home security systems, small office NVR deployments, and retail surveillance setups.
Ideal For
- Home & SOHO Surveillance Systems — 4TB for weeks of continuous HD footage from multiple cameras
- DVR & NVR Storage — AllFrame technology for reliable frame capture and playback in recording systems
- High-Density IP Camera Deployments — Up to 64 simultaneous camera streams per drive
- Always-On Surveillance Recording — 180TB/year endurance for 24/7 continuous write workloads
- Retail & Small Office Security — Cost-effective surveillance storage for small commercial deployments
Specifications
- MPN — WD43PURZ
- SKU — CCWD43PURZ
- Capacity — 4TB
- Form Factor — 3.5"
- Interface — SATA III 6Gb/s
- Recording Technology — CMR
- Spindle Speed — 5400 RPM
- Cache — 256MB
- Technology — AllFrame
- Camera Support — Up to 64 streams
- Workload Rating — 180TB/year
- 24/7 Rated — Yes
- Warranty — 3-year limited
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About Brand
About Brand
Western Digital is a global leader in high-performance data storage, engineered for reliability, speed, and endurance. From HDDs to SSDs, WD drives deliver advanced technology and trusted performance for demanding workloads and professional applications.
Shipping & Rerturns
Shipping & Rerturns
• Shipping: Orders are processed within 1–2 business days. Standard delivery takes 3–7 business days depending on your location.
• Returns: You may return or exchange products within 30 days of receiving your order. Items must be in original condition with proof of purchase.
If your item is defective or damaged due to manufacturing issues, we’ll gladly replace it at no additional cost.
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Capacity :
Form Factor : 3.5 inch
Connector : SATA III 6Gb/s
Compatibility : Compatible with SATA-enabled desktop PCs, DVR/NVR surveillance systems, NAS systems, RAID arrays, and Windows/Linux systems with 3.5-inch drive bays; supports up to 64 HD cameras and 24/7 surveillance workloads
Interface : SATA III 6Gb/s
Model Number : WD43PURZ
Recording Technology : CMR
Cache : 256MB
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Schedule and Time
AAAwave offers a 30 day return/exchange policy, unless otherwise noted. The return/exchange policy begins on the customers purchase date. No returns or exchanges will be accepted after 30 days. All refunds will be made back to the customer’s original form of payment within 7 business days of receiving the return merchandise. Return Merchandise Authorization number (RMA) are valid for only 10 business days. Packages must be received by us within 10 business days after the RMA number has been issued. Packages received after 10 business days will not be accepted and the warranty period will be considered voided and cancelled. RMA processing time is 5-7 business days once the package has been received.
Extra Charge
AAAwave reserves the right to refuse the return or to charge a minimum 10% restocking fee. There is no restocking fee if the product is returned factory sealed and unopened (including an intact UPC code) and must include all packing material, blank warranty cards, manuals, and accessories. AAAwave can only refund the original purchase price. We offer RMA replacement without any restocking fee to customers who have received a defective product. Shipping costs is non-refundable. Product exchanges can be accepted for defective items, the same exact item only.
Customer’s Duty
aaawave.com does NOT offer "Advanced Replacement" for the exchange of defective merchandise. aaawave.com does NOT pay the return shipping costs for defective merchandise. We are NOT responsible for product defects, because we do not manufacture the products we sell. aaawave.com will pay for shipping "Back to the customer" for exchange of defective items. All returns and exchanges must be accompanied with a Return Merchandise Authorization number (RMA number). Please contact us for a RMA number prior to sending your package. aaawave.com will NOT accept packages without prior authorization and a RMA number. All packages being shipped to aaawave.com must have a valid tracking number that is with a major courier such as UPS, FEDEX, or USPS.
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Currently, we only ship within the U.S. For international inquiries, please contact our support team.
What if a product is defective?
All new products carry the manufacturer's full warranty. If you receive a defective product, please contact us for a Return Merchandise Authorization (RMA) number. We offer RMA replacement for defective items (the same exact item only). Please note that we do not offer "Advanced Replacement" and do not cover return shipping costs for defective merchandise.
30 Day Return Policy.
AAAwave.com offers a 30 day return/exchange policy, unless otherwise noted. The return/exchange policy begins on the customers purchase date. All refunds will be made back to the customer’s original form of payment within 7 business days of receiving the return merchandise.
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How long does it take to process an order?
How long does it take to process an order?
Orders are typically processed within 1–2 business days. You will receive a confirmation email with tracking details once your order has been shipped. Please note that processing times may be slightly longer during high-demand periods or sales events.
Do you ship internationally?
Do you ship internationally?
Currently, we only ship within the U.S. For international inquiries, please contact our support team.
What is your return policy?
What is your return policy?
We accept returns within 30 days of delivery. To be eligible, items must be unused, in their original packaging, and accompanied by proof of purchase. If the item is faulty or damaged, please contact us for further instructions. For returns due to reasons other than product defects or our error, customers are responsible for return shipping costs.

