Would this lower SATA3 speeds down to SATA speed?

No. If the motherboard and the hard drive both support Sata 3, then this will work. Because it is only a cable, it will not affect speeds.

Will this work in a laptop? Hear me out, I purchased a larger 2.5 HDD however it is thicker than a normal 2.5 HDD. I need to bridge the connection from the laptop board to the HDD. The drive WILL fit the HDD bay space, it just will not fit the pre-determined board spacing.

I did not purchase the cable for that purpose, but my purpose is similar. With the use of a drive duplicator I make backups to my computer HHD to SSD 2.5" drives. you might have issues internal to the laptop computer, space. You might try doing what I did. use a product to make you new drive a duplicate of you older drive. Or I might not understand your issues.

will this work with one of the SmarTech duplicators?

Yes, it would. The Duplicators would accept the connection.

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StarTech.com SATA22PEXT 1 ft. 22 Pin SATA Power and Data Extension Cable

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12-in. long SATA power cable offers give for component connectors
Provides flexibility during device upgrades
RoHS and REACH compliant for environmental protection
Female 22-pin to male 22-pin SATA data and power combo cable
SATA III speeds of up to 6Gbps

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Extend SATA Power and Data Connections by up to 1ft - 1ft sata extension cable -

Model
Brand	StarTech.com
Model	SATA22PEXT
Type	SATA Power and Data Extension Cable
Type	Others
Color	Multi-Color

Details
Length	12"
Cable Length	1 ft.
Connector Number	2
Connector Detail	Connector A: 1 x SATA Data & Power Combo (7+15 pin) Receptacle Connector B: 1 x SATA Data & Power Combo (7+15 pin) Plug
Specifications	Female 22-pin to Male 22-pin SATA Data & Power Combo 12" Extension Cable Cable Jacket Type: PVC - Polyvinyl Chloride

Features
Features	Extend SATA Power and Data Connections by up to 1ft. Female 22-pin to Male 22-pin SATA Data & Power Combo Creates flexibility when building or upgrading systems Extend backplane adapter connections Extend Drive Dock connections

Group
Cable Length	0.5 ft.

Additional Information
First Listed on Newegg	January 12, 2026

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StarTech.com SATA22PEXT 1 ft. 22 Pin SATA Power and Data Extension Cable

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Item#: 9SIBSWCKRR2862

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StarTech.com SATA22PEXT 1 ft. 22 Pin SATA Power and Data Extension Cable

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