WD Red Pro 12TB 3.5" NAS Internal Hard Drive SATAIII 6Gbps CMR Expander Card while the EX2300-C offers 12

while the EX2300-C offers 12 10/100/1000BASE-T ports

Part Number: 85Y5847 (alt: 85Y6069

Provides standard 19-inch rack mounting with sliding access for maintenance

5-inch form factor designed for continuous 24/7 video recording in security and surveillance applications

Output Power: 400W

WD Red Pro 12TB 3.5" NAS Internal Hard Drive SATAIII 6Gbps CMR Expander Card while the EX2300-C offers 12The WD Red Pro 12TB is a genuine 7,200 RPM 3. 5 inch SATA III (6Gbps) CMR NAS hard drive with 256MB cache, rated for 24 7 continuous operation in multi bay NAS enclosures and RAID arrays, featuring vibration compensation, multi axis shock sensing, and dynamic fly height technology for data integrity under persistent workloads backed by a 5 year limited warranty. Capacity: 12TB Interface: SATA III (6Gbps) Speed: 7,200 RPM Cache: 256MB Form Factor: 3. 5