will this work inside my home PC which has an extra sata power and data cable unused?

Updated answer: As long as the 3.3v line is not part of the power connector, 4 wires is what you want to see. Details: If the SATA power connector has 2X black (ground), 1X red (5v), and 1X yellow (12v) its fine (4 wires total). The issue is that the 'standard' was recently changed for NAS/datacenter hard drives so that if there is 3.3v power connected (the orange line, sometimes white) the drive remains inactive and will not spin up, these have 5 wires instead of 4. If you do not want to modify the power connector, a simple SATA power extension or splitter will do the job as those USUALLY don't have the 3.3v line.

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Main image of Toshiba N300 PRO 20TB Large-Sized Business NAS (up to 24 Bays) 3.5-Inch Internal Hard Drive - Up to 300 TB/Year Workload Rate CMR SATA 6 Gb/s 7200 RPM 512 MB Cache - HDWG62AXZSTB

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Alt view image 5 of 11 - Toshiba N300 PRO 20TB Large-Sized Business NAS (up to 24 Bays) 3.5-Inch Internal Hard Drive - Up to 300 TB/Year Workload Rate CMR SATA 6 Gb/s 7200 RPM 512 MB Cache - HDWG62AXZSTB

Alt view image 6 of 11 - Toshiba N300 PRO 20TB Large-Sized Business NAS (up to 24 Bays) 3.5-Inch Internal Hard Drive - Up to 300 TB/Year Workload Rate CMR SATA 6 Gb/s 7200 RPM 512 MB Cache - HDWG62AXZSTB

Alt view image 7 of 11 - Toshiba N300 PRO 20TB Large-Sized Business NAS (up to 24 Bays) 3.5-Inch Internal Hard Drive - Up to 300 TB/Year Workload Rate CMR SATA 6 Gb/s 7200 RPM 512 MB Cache - HDWG62AXZSTB

Alt view image 8 of 11 - Toshiba N300 PRO 20TB Large-Sized Business NAS (up to 24 Bays) 3.5-Inch Internal Hard Drive - Up to 300 TB/Year Workload Rate CMR SATA 6 Gb/s 7200 RPM 512 MB Cache - HDWG62AXZSTB

Alt view image 9 of 11 - Toshiba N300 PRO 20TB Large-Sized Business NAS (up to 24 Bays) 3.5-Inch Internal Hard Drive - Up to 300 TB/Year Workload Rate CMR SATA 6 Gb/s 7200 RPM 512 MB Cache - HDWG62AXZSTB

Alt view image 10 of 11 - Toshiba N300 PRO 20TB Large-Sized Business NAS (up to 24 Bays) 3.5-Inch Internal Hard Drive - Up to 300 TB/Year Workload Rate CMR SATA 6 Gb/s 7200 RPM 512 MB Cache - HDWG62AXZSTB

Alt view image 11 of 11 - Toshiba N300 PRO 20TB Large-Sized Business NAS (up to 24 Bays) 3.5-Inch Internal Hard Drive - Up to 300 TB/Year Workload Rate CMR SATA 6 Gb/s 7200 RPM 512 MB Cache - HDWG62AXZSTB

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Toshiba N300 PRO 20TB Large-Sized Business NAS (up to 24 Bays) 3.5-Inch Internal Hard Drive - Up to 300 TB/Year Workload Rate CMR SATA 6 Gb/s 7200 RPM 512 MB Cache - HDWG62AXZSTB

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Built for medium or large business NAS with up to 24 bays
Designed for 24/7 operation
High reliability with workload rate of up to 300 TB/year and MTTF up to 1.2 million hours.
High performance 7200 RPM drive with large cache size
Optimized for RAID environments with integrated RV sensors to mitigate rotational vibrations

Specs

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Learn more about the Toshiba HDWR62AXZSTB

Model
Brand	TOSHIBA
Series	N300
Model	HDWR62AXZSTB

Performance
Capacity	20TB

Dimensions
Form Factor	5.25"

Additional Information
Date First Available	May 14, 2025

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