WD 18TB Purple Pro Surveillance Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, 512 MB Cache, 3.5" WD181PURP
WD 18TB Purple Pro Surveillance Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, 512 MB Cache, 3.5" WD181PURP
Available in stock (55)
WD Purple Pro Surveillance 18TB Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, 512 MB Cache, 3.5" WD181PURP
WD Purple™ Pro drives are designed for advanced AI-enabled recorders, video analytics servers and deep learning solutions requiring additional capacity, performance and workload capability.
Features:
- WD Purple Pro hard drive for surveillance is engineered with advanced capabilities
- High performance, reliability and workload capability for advanced AI-enabled recorders, video analytics appliances, deep-learning servers and cloud-based storage, including RAID and JBOD configurations.
- Supports up to 550 TB/yr workload rate2 in 8TB –18TB.
- Designed with tarnish-resistant components for harsh environments, and with additional robustness for multi-bay enclosures
Storage for advanced smart video solutions
WD Purple™ Pro drives are designed for new generations of high-end AI-enabled recorders, video analytics appliances, deep-learning servers and cloud solutions that can benefit from high-capacity storage with high performance and additional workload capability. WD Purple Pro drives feature AllFrame™ AI technology, which helps reduce frame loss, improve overall video playback, and not only enables recording of multiple streams per camera but also supports up to 32 AI streams per drive for deep learning analytics within the system. WD Purple Pro drives also feature enterprise-class performance, data integrity and drive reliability, especially in larger-scale systems and enclosures where operational vibration is present.
Western Digital's exclusive AllFrame™ AI technology
All WD Purple™ Pro drives are equipped with AllFrame AI technology, which not only improves ATA streaming to help reduce frame loss and improve overall video playback, but supports up to 32 AI streams for Deep Learning analytics within the system.
Multiple cameras, multiple streams
Modern recorders now support multiple video streams per camera. WD Purple™ Pro drives are optimized to support up to 64 HD single-stream cameras4, and can also support many of the latest smart cameras that transmit multiple streams. With this flexibility, you can upgrade or scale your security or smart video solution in the future.
Advanced workload capability for advanced systems
WD Purple™ Pro drives feature a workload rating up to 550TB/year2 to support the heavy video data capture and analysis found in advanced AI-enabled recorders, video analytics appliances, deep learning analytics servers and cloud-based storage. The combination of streaming optimizations and enhanced durability and reliability make WD Purple Pro smart video storage ideal for all analytics servers, whether processing video streamed directly from cameras or large-scale captured video data sets.
Designed for reliable operation in advanced high-performance smart video solutions
With an MTBF of up to 2.5 million hours3 (18TB1), WD Purple™ Pro drives are engineered for advanced smart video solutions that operate 24/7. With tarnish-resistant components and full multi-bay support, WD Purple Pro drives deliver reliable operation in large scale surveillance systems even in harsh environments.
Field-proven high capacity
Now on its 6th generation, field-proven HelioSeal™ technology delivers trusted high-capacity WD Purple™ Pro hard drives (12TB, 14TB and 18TB1) for the massive storage needs of AI-driven smart video and deep learning analytics.
Hard Drive Comparison Table
Model
Capacity
Interface
Cache
RPM
Workload Rate
Form Factor
Warranty
Purpose
WD102PURP
10TB
SATA 6Gb/s
256MB
7200 RPM
180TB/yr
3.5"
3 Years
Surveillance (WD Purple)
WD181PURP
18TB
SATA 6Gb/s
512MB
7200 RPM
180TB/yr
3.5"
3 Years
Surveillance (WD Purple)
MG10ACA20TE
20TB
SATA 6Gb/s
512MB
7200 RPM
550TB/yr
3.5"
5 Years
Enterprise Storage (Toshiba MG10)
MG08ACA16TE
16TB
SATA 6Gb/s
512MB
7200 RPM
550TB/yr
3.5"
5 Years
Enterprise Storage (Toshiba MG08)
WUH722020BLE6L4
20TB
SATA 6Gb/s
512MB
7200 RPM
550TB/yr
3.5"
5 Years
Data Center / Cloud (Ultrastar DC HC570)
WUH721816ALE6L4
18TB
SATA 6Gb/s
512MB
7200 RPM
550TB/yr
3.5"
5 Years
Data Center / Cloud (Ultrastar DC HC550)
WD260KFGX
26TB
SATA 6Gb/s
512MB
7200 RPM
550TB/yr
3.5"
5 Years
Enterprise NAS (WD Red Pro 26TB)
WD103KFBX
10TB
SATA 6Gb/s
256MB
7200 RPM
300TB/yr
3.5"
5 Years
Enterprise NAS (WD Red Pro 10TB)
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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 : 18 TB
Form Factor : 3.5 inch
Connector : SATA
Compatibility : Up to 64 single-stream cameras
Interface : SATA
Model Number : WD181PURP
Recording Technology : CMR
Cache : 512 MB
Shipment Time
Handling time: All orders are shipped as soon as possible within 2 business day after payment confirmed. However, we cannot control transit time once your package is handed over to the courier. We process and ship orders Monday – Friday and are unable to offer weekend or holiday delivery.
Shipment Methods
All shipping requires additional 1-2 days of processing time
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USPS Priority (3-7 business days)
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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
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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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Do you ship internationally?
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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Discover more in our FAQ
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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.

