Pulled from my NAS due to storage increase
No issues at all, perfect working condition, I have more available check my profile for further listings, will combine shipping to save on shipping cost if you purchase 2 or more.
Any questions please get in touch
Western Digital WD Red WD100EFAX is a 10TB
internal hard drive specifically engineered for 24/7 use in Network
Attached Storage (NAS) systems with up to 8 bays. 

This 3.5-inch drive uses HelioSeal helium
technology to reduce power consumption and heat while increasing capacity. It
is a CMR (Conventional Magnetic Recording) drive, which
provides more consistent performance for RAID rebuilds and sustained write
tasks compared to SMR alternatives. 

Core Technical Specifications

Capacity: 10TB
(10,000GB).
Rotational
Speed: 5,400 RPM class.
Cache: 256MB.
Interface: SATA
6Gb/s.
Transfer
Rate: Up to 210 MB/s sustained internal data rate.
Workload
Rating: 180 TB/year.
MTBF: 1,000,000
hours (Mean Time Between Failures).


Key Features & NAS Optimisation


NASware
3.0 Firmware: Specifically tuned for NAS workloads to improve
system compatibility, integration, and error recovery timing in
multi-drive RAID environments.
3D
Active Balance Plus: Enhanced dual-plane balance control
technology that reduces vibration and noise, extending the drive's
lifespan in systems with multiple drives.
TLER
(Time Limited Error Recovery): Prevents the drive from being
prematurely dropped out of a RAID array during deep error recovery
processes.
Thermal
Management: Designed to operate at lower temperatures, with users
on Amazon reporting it stays cool (as low as 38°C) even under
load.