That looks like a SAS part number not SATA , what is up with that?

The Seagate Exos X20 ST18000NM003D is specified to have an interface of SATA 6.0Gb/s.

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Seagate Exos X20 ST18000NM003D 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive

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7200 RPM 256MB Cache
SATA 6.0Gb/s
For Enterprise Storage

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Overview

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Model
Brand	Seagate
Series	Exos X20
Model	ST18000NM003D

Performance
Interface	SATA 6.0Gb/s
Capacity	18TB
Recording Technology	CMR
RPM	7200 RPM
Cache	256MB
Average Latency	4.16ms

Features
Features	Market-leading 20TB HDD offering the highest capacity available for more petabytes per rack* Highly reliable performance with enhanced caching, making it the logical choice for cloud data center and massive scale-out data center applications Hyperscale SATA model tuned for large data transfers and low latency PowerBalance feature optimizes Watts/TB Maximize total cost of ownership savings through lower power and weight with helium sealed-drive design Proven helium side-sealing weld technology for added handling robustness and leak protection Digital environmental sensors to monitor internal drive conditions for optimal operation and performance Data protection and security- Seagate Secure features for safe, affordable, fast, and easy drive retirement * Compared to 18TB competitive product.
Usage	For Enterprise Storage

Dimensions
Form Factor	3.5"
Height (maximum)	26.10mm
Width (maximum)	101.85mm
Length (maximum)	147.00mm

Additional Information
First Listed on Newegg	July 21, 2022

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Limited Warranty period (parts): 5 years
Limited Warranty period (labor): 5 years
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Return Policies

Return for refund within: 30 days

Return for replacement within: 30 days

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Manufacturer Contact Info

Manufacturer Product Page
Manufacturer Website
Support Phone: 1-800-SEAGATE
Support Website
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Seagate Exos X20 ST18000NM003D 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive

Learn more about the Seagate ST18000NM003D

Customer Reviews of the Seagate ST18000NM003D

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Return Policies

Manufacturer Contact Info

Item#: N82E16822185009

Seagate Exos X20 ST18000NM003D 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive

Learn more about the Seagate ST18000NM003D

Customer Reviews of the Seagate ST18000NM003D

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Return Policies

Manufacturer Contact Info