Previous
Next
Synology

Synology HAS5300-12T 12TB SAS 12Gb/s 7200 RPM Enterprise HDD (Boxed)

SKU 24137 Brand Synology EAN13 4711174724178
Enterprise-class 12TB 3.5" SAS HDD with 7200 RPM, 256MB cache, and 254 MB/s transfer speed. Rated for 2.5M hour MTTF and 550TB annual workload. Optimized for Synology NAS systems.
Storage (SSD & HDD) - Device Type Internal HDD
Storage (SSD & HDD) - Capacity 12TB
Storage (SSD & HDD) - RPM (HDD) 7200 RPM
Storage (SSD & HDD) - Interface SAS 12Gb/s
Storage (SSD & HDD) - Cache (HDD) 256MB
Storage (SSD & HDD) - Form Factor 3.5 inch

The Synology HAS5300-12T is a high-capacity enterprise-grade 3.5-inch hard drive designed specifically for demanding 24/7 NAS and storage environments. With 12TB of storage capacity, a SAS 12 Gb/s interface, and 7200 RPM rotational speed, this drive delivers sustained data transfer rates of 254 MB/s and is optimized for mission-critical workloads. The drive features 256MB cache and has been rigorously tested with over 200,000 cumulative testing hours on Synology hardware.

Built for reliability and durability, the HAS5300-12T carries a 2.5 million hour Mean Time to Failure (MTTF) rating and supports workloads up to 550TB per year. It includes persistent write cache technology to safeguard data integrity and firmware optimized for critical workloads. When integrated with Synology SA or UC series NAS systems, it enables RAID array repair up to 27% faster than comparable enterprise-class drives. The drive is backed by a 5-year limited warranty and supports automatic firmware updates through Synology's DSM interface.

  • Capacity: 12TB
  • Interface: SAS 12 Gb/s
  • Form Factor: 3.5 inch
  • Rotational Speed: 7200 RPM
  • Cache: 256MB
  • Max Sustained Transfer Speed: 254 MB/s
  • MTTF Rating: 2.5 million hours
  • Annual Workload: Up to 550TB
  • Warranty: 5 years
  • Power Consumption: 4.25W (idle), 7.83W (random R/W)
Capacity12 TB
Form Factor3.5 inch
InterfaceSAS 12 Gb/s
Rotational Speed7200 RPM
Cache256 MB
Maximum Sustained Data Transfer Speed254 MB/s
MTTF Rating2.5 million hours
Annual Workload Rating550 TB/year
Power Consumption (Idle)4.25 W
Power Consumption (Random Read/Write 4KB Q1)7.83 W
Warranty5 years
Sector Size512e
Buffer Size256 MiB
Operating Altitude-305 m to 3,048 m
Operating Humidity5% to 90% R.H. (no condensation)
Physical Dimensions (H x W x D)26.1 mm x 101.85 mm x 147 mm
Weight770 g
CertificationsCE, RCM, BSMI, KC, EAC, UL, TUV, ICES, UKCA, RoHS