The Toshiba N300 Pro series NAS hard drive is a 3.5-inch SATA hard drive designed specifically for high load scenarios in medium to large enterprises. Its core features include 4TB-24TB full capacity coverage, 7200 RPM high speed, cache capacity of 512MB-1.0GB, and a maximum continuous transfer speed of 309MB/s. It supports 24 × 7 24/7 operation, is compatible with up to 24 hard drive slots, and is equipped with RV vibration and impact sensors. It has an annual workload of up to 550TB and an MTTF of up to 2.5 million hours. It comes with a 5-year limited warranty and uses CMR technology and NCQ functionality, complying with RoHS environmental standards. It is suitable for high load NAS systems, RAID arrays, and enterprise level data storage scenarios.

​1、 Product core positioning and adaptation scenarios

1.1 Core positioning

Product type: 3.5-inch enterprise SATA interface NAS hard drive

Design objective: To meet the high load, multi-user, 24/7 operation needs of medium and large enterprises, while balancing reliability, scalability, and performance

Core advantages: CMR technology ensures compatibility and stability, dual sensor protection adapts to multi disk RAID environments, high workload and long MTTF meet enterprise level data storage needs

1.2 Adaptation scenarios

Medium to large enterprises: high load NAS systems, 24 disk RAID optimized storage, centralized data sharing servers

Key applications: massive business data storage, multi-user collaborative file sharing, continuous read and write high load scenarios

2、 Comparison of Core Parameters for Full Capacity Specifications

Capacity retail model bulk model cache size continuous transfer speed (MB/s) annual workload (TB) MTTF (hours) unrecoverable error rate working power consumption (W) active idle power consumption (W) weight (g) noise (idle/dB)

4TB HDWG740XZSTD HDWG740UZSVD 512MB 281 300 1,200,000 1/10¹⁵ 7.43 4.14 710 34

6TB HDWG760XZSTB HDWG760UZSVB 512MB 281 300 1,200,000 1/10¹⁵ – 4.92 730 34

8TB – – 512MB 281 300 1,200,000 1/10¹⁵ 9.07 5.74 755 34

10TB – – 512MB 281 300 1,200,000 1/10¹⁵ 9.07 5.74 755 34

12TB – – 512MB 281 300 1,200,000 1/10¹⁴ 6.5 3.30 720 20

14TB – – 512MB 281 300 1,200,000 1/10¹⁴ 7.38 4.14 720 20

22TB HDWG62CXZSTB HDWG62CUZSVB 512MB 281 300 1,200,000 1/10¹⁵ 8.02 4.35 720 20

24TB HDWG82EXZSTB HDWG82EUZSVB 1024MB 309 550 2,500,000 1/10¹⁵ 7.62 4.35 730 20

3、 Core Technology and Performance Parameters

3.1 Hardware and Interface Specifications

Physical dimensions: The entire series is uniformly 147.0mm (length) × 101.85mm (width) × 26.1mm (height)

Interface type: SATA 6.0 Gbit/s, ensuring high-speed data transmission

Storage Technology: Adopting CMR (Vertical Magnetic Recording) technology to enhance data read and write stability and compatibility

Core function: Supports Native Command Queuing (NCQ) and optimizes read-write queue management; Equipped with Toshiba cache technology and ramp loading technology to extend the lifespan of hard drives

Sensor configuration: Built in Rotational Vibration (RV) vibration sensor and impact sensor to reduce vibration interference in multi disk environments, compatible with RAID arrays

3.2 Key Performance Performance

Speed: 7200rpm for the entire series, ensuring continuous performance in high load scenarios

Continuous transmission speed: The typical value of 4TB-22TB model is 281MB/s, and the 24TB model has increased to 309MB/s, meeting the fast migration needs of large capacity data

Multi bay support: compatible with up to 24 hard bays, suitable for medium to large enterprise level multi bay NAS storage systems

4、 Reliability and Warranty

4.1 Core reliability indicators

Annual workload: 4TB-22TB model is 300TB/year, 24TB model can reach up to 550TB/year, supporting high-intensity continuous read and write

Mean Time to Failure (MTTF): 1.2 million hours for the 4TB-22TB model and 2.5 million hours for the 24TB model, with industry-leading stability

Unrecoverable error rate: 4TB-10TB, 22TB-24TB are 1/10 ¹⁵, 12TB-14TB are 1/10 ¹⁴, high data security

Operation mode: Supports 24/7 continuous operation, adapted to the year-round online needs of enterprise NAS

Load/unload cycle: Unified at 600000 times across the entire series, with excellent durability

4.2 Warranty Policy

Provide a 5-year limited warranty service, covering hardware failures, performance abnormalities, and other issues to ensure enterprise level usage needs are met

5、 Environmental adaptability and power consumption

5.1 Environmental Parameters

Temperature range: working state 5-60 ℃ (surface), non working state -40-70 ℃, suitable for various computer room environments

Vibration protection: 0.75G (7.35m/s ²) for 5-300Hz and 0.25G (2.45m/s ²) for 300-500Hz during operation; When not working, 5-500Hz is 3.0G (29.4m/s ²)

Impact protection: 50G (490m/s ², 2ms continuous) during operation; 200G (1960m/s ², 2ms continuous) during non working hours

Acoustic noise: 4TB-10TB idle mode is 34dB; 12TB-24TB idle mode is 20dB, with better mute performance

5.2 Power consumption parameters

Power supply voltage: 5VDC (+10%/-7%), 12VDC (± 10%)

Working power consumption: typical value 6.5W-8.02W, 24TB model as low as 7.62W, balancing performance and energy saving

Active idle power consumption: typical value of 3.30W-4.41W, reducing energy consumption during idle time

6、 Model and physical characteristics

Model naming: Retail models start with “HDWGXXXZST”, bulk models start with “HDWGXXXUZSV”

Bottom hole type: The entire series is unified as TYPE1, compatible with standard mounting brackets

Weight: 710g (4TB), 730g (6TB/24TB), 720g (12TB-22TB), 755g (8TB/10TB)