**Product Specifications:**
**Brand:** Western Digital
**Product Type:** Mechanical Hard Drive
**Capacity:** 1TB to 24TB
**Interface:** SATA/SAS
**Speed:** 5400/7200 RPM
**Workload:** 180TB/year to 550TB/year
**Product Performance:** CMR Vertical Technology, Video Surveillance, High Efficiency, High Energy Storage
**Preferred Service:** 2 to 5 years limited warranty with replacement
**Features:** Slope Loading Technology, DIY Installation Essential, AllFrameTM Technology, VD Purple Pro, NASwareTM 3.0 Technology, 3D Active BalanceTM, Plus Technology, Error Recovery Control
**WD Red Pro:**
**Suitable For:** Small to Large Enterprises, NAS Systems
**Design:** 3.5" NAS HDD, 24 Drive Bays
**Durability:** Tested for Enterprise Workloads, Long-Term Reliability
**Warranty:** 5 years limited warranty
**Compatibility:** NASware 3.0 Technology, Seamless Integration, RAID Environment Balance
**Product Specifications for WD Red Pro:**
**Name:** WD Red Pro
**Size:** 3.5 inches
**Model:** WD4005FFBX
**Capacity:** 4TB
**Interface:** SATA 6Gb/s
**Cache:** 256MB
**Operating Temperature:** 0°C to 65°C
**Performance:** 7200 RPM
**MTBF:** 1,000,000 hours
**Storage Environment:** -40°C to 70°C
**Dimensions:** 26.1 x 147 x 101.6mm
**Limited Warranty:** 5 years
**Additional Information:**
Product availability may vary by region
Storage capacity is based on 1GB = 1 billion bytes
Transfer rates may vary based on host device, usage, and capacity
MTBF is estimated based on internal testing at 40°C
For detailed warranty information, refer to http://support.wd.com/warranty
**Disclaimer:** Product images may differ from actual products. Specifications are subject to change without prior notice. © 2021 Western Digital Corporation. All rights reserved.
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