Is this 7200 or 5400rpm?

Only the 1 TB (#ST1000DM010) and 2 TB (#ST2000DM008) models are 7200, all the larger models are 5400. Both the llisted speed and model number change in the product description as you pick different disk size options. This is consistent with Seagate's website -- From the home page, drill down through (or search for) Internal / Hard Drives / BarraCuda - Learn More, and then click the 3.5 inch models tab (NOT the 3.5 inch PRO models tab). Then click on the data sheet next to any model to get a PDF with a table containing all of the models along with their drive speeds and other specs..

Is a sata cable included in the package?

Cables not included. You can buy a SATA data cable and likely the appropriate power cable for your computer right here on Amazon. Depending on your power supply, the power cable may already be connected to it in your computer -- some have that and some do not.

Is this really 7200rpm? the model number suggests otherwise.

Only the 1TB and 2TB HDDs in this series are 7200RPM. The higher capacity drives are 5400RPM and only intended as data drives. When using the 5400RPM drives you should have a separate drive that is either a 7200RPM HDD, a NVMe drive or an SSD for the operating system/as the boot drive. 5400RPM drives will boot a computer but will be noticeably slower than a 7200RPM HDD, a NVMe drive or an SSD. If your computer is new enough, an NVMe drive would be the best option. Otherwise, a SATA SSD would be the next best option. All three are available right here on Amazon.

Is the 2tb (st2000dm008) internal hard drive cmr or smr?

I can't speak to SMR vs. CMR but since I see someone said this is unsuitable as a boot drive I will note that I have used this as the boot drive with a dual Windows 10-Xubuntu 20.04 OS install and it has worked fine. I personally think the load/unload cycle count is set way too liberally, it unloads way too quickly IMO but that is easy enough to deal with and even if it isn't dealt with the drive has about 3-5 years of load/unload cycles built into it and that is worst case where the computer is on constantly (my use case). Of course if you use it as a data only drive and use an SSD or M.2 for a boot drive this is a moot point as the drive is not accessed regularly.

ASIN	B07H289S7C
Additional Features	Data Recovery Service
Brand	Seagate
Cache Memory Installed Size	256
Compatible Devices	Desktop, Laptop
Connectivity Technology	SATA
Customer Reviews	4.5 out of 5 stars 9,788 Your Review
Data Transfer Rate	190 Megabytes Per Second
Digital Storage Capacity	8 TB
Form Factor	3.5-inch
Global Trade Identification Number	00763649129548
Hard Disk Description	Mechanical Hard Disk
Hard Disk Form Factor	3.5 Inches
Hard Disk Interface	Serial ATA
Hard-Drive Size	8 TB
Hardware Connectivity	SATA 6.0 Gb/s
Installation Type	Internal Hard Drive
Item Weight	658 g
Model Name	Seagate barracuda
Model Number	ST8000DM004/ST800DMZ04
Number of Items	1
Read Speed	190 Megabytes Per Second
Special Feature	Data Recovery Service
Specific Uses For Product	Gaming
UPC	763649129548

Seagate 8 TB BarraCuda 3.5インチ内蔵ハードドライブ（5400 RPM、256 MBキャッシュ、SATA 6 Gb/s、最大190 MB/s、モデル：ST8000DMZ04 / DM004）

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