I purchased (2) 12-tb: anyone knows why i get 10.91-tb for each? why are we short?

Hard drive manufacturers use base 10 for size. So 1 TB = 10**12 bytes. Your system uses base 2 for counting, so 1 TiB = 2**40 bytes. A base 2 TiB is larger than a base 10 TB. The actual name for a base 2 terabyte is a tebibyte, or TiB. A base 10 TB is TB or terabyte.

Can this be used as a normal hdd storage drive for a desktop pc?

Quick answer YES The more complete answer starts with 'WHY'? First, NAS rated disks are typically more expensive than desktop drives. They are built for different use expectations. One of the answers mentioned always leaving the system powered on. Most NAS setups are powered on and left on. They do not power cycle (and more importantly heat cycle) with any regularity. As such, the drives are built to operate in that environment. Another answer mentioned RPMs and many NAS drives spin at 5400/5900 RPMs. This means that the place on the platter where you file is stored takes longer to rotate around than it would on a typical desktop drive of 7200 RPM. Another answer mentioned vibration. The desktop is less vibration isolated (typically) than a NAS setup. Shop a 7200 (or faster) RPM disk or consider NVMe or SSD is the budget allows. You will not only likely save money initially but will have better performance in the longer term.

Is this drive smr if so i don't want it!

At least the IronWolf Pro drives are all CMR (=PMR), and not SMR. I think some of the smaller capacity non-Pro drives used to be SMR, but I think now even they are all CMR.

Does this drive come with sata cable?

No it's a bare drive no screws no cables.

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Seagate IronWolf Pro 4TB NAS Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 7200 RPM 128MB Cache for RAID Network Attached Storage, Data Recovery Service – Frustration Free Packaging (ST4000NEZ01)

Seagate IronWolf Pro 4TB NAS Internal Hard Drive HDD – 3.5 Inch SATA 6Gb/s 7200 RPM 128MB Cache for RAID Network Attached Storage, Data Recovery Service – Frustration Free Packaging (ST4000NEZ01)

Product ID: 341744352

Details

Brand
Seagate
Colour
Multicolor
Compatible devices
Desktop Laptop
Connectivity technology
SATA
Digital storage capacity
4 TB
Hard disk description
Mechanical

⚡7200 RPM blazing speed

💾4TB massive storage

🛡️1.2M hours MTBF ultra-reliable

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Description

🦾 IronWolf Pro: The NAS drive that works as hard as you do.

OPTIMIZED FOR NAS - Engineered for low vibration, noise reduction, and power efficiency to keep your network storage humming quietly.
BLAZING 7200 RPM SPEED - Experience lightning-fast 214MB/s transfer rates that keep your workflows smooth and efficient.
POWERHOUSE 4 TB CAPACITY - Store and share your data effortlessly with massive space designed for multi-user NAS environments.
IRON WOLF HEALTH MANAGEMENT - Stay ahead with real-time drive health monitoring to prevent downtime and data loss.
RESCUE DATA RECOVERY INCLUDED - Sleep easy with a 3-year data recovery service and a 5-year warranty protecting your investment.

The Seagate IronWolf Pro 4TB NAS Internal Hard Drive is a 3.5-inch SATA 6Gb/s HDD designed for multi-user NAS systems, delivering 7200 RPM speed and 128MB cache for fast, reliable data access. Built to minimize noise and vibration, it features IronWolf Health Management for proactive monitoring, backed by a 5-year warranty and 3-year Rescue Data Recovery service, making it a top-tier choice for professional-grade network storage.

Specifications

ASIN	B084ZV8YW8
Additional Features	IronWolf Health Management
Best Sellers Rank	#12,094 in Computers ( See Top 100 in Computers ) #47 in Internal Hard Drives
Brand	Seagate
Built-In Media	RV Sensors
Cache Memory Installed Size	256
Color	Multicolor
Compatible Devices	Desktop, Laptop
Connectivity Technology	SATA
Customer Package Type	Standard Packaging
Customer Reviews	4.5 4.5 out of 5 stars (2,134)
Data Transfer Rate	6 Gigabits Per Second
Digital Storage Capacity	4 TB
EU Spare Part Availability Duration	5 Years
Enclosure Material	Down
Form Factor	3.5-inch
Hard Disk Description	Mechanical Hard Disk
Hard Disk Form Factor	3.5 Inches
Hard Disk Interface	Serial ATA
Hard Disk Rotational Speed	7.2E+3 RPM
Hard-Drive Size	4 TB
Hardware Connectivity	SATA 6.0 Gb/s
Installation Type	Internal Hard Drive
Item Dimensions L x W x Thickness	14.7L x 10.2W x 2.6Th centimeters
Manufacturer	Seagate
Media Speed	214.0
Mfr Part Number	ST4000NEZ01/NE001
Model Name	IronWolf Pro
Model Number	ST4000NEZ01
Number of Items	1
Read Speed	214 Megabytes Per Second
Specific Uses For Product	Business, Personal
UPC	763649138335
Unit Count	1.0 Count

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