How does the USB 3.0 interface affect the data transfer speed compared to USB 2.0?

The USB 3.0 interface allows for fast data transfer speeds when connected to a USB 3.0 port.

Is the Seagate Expansion Portable 2TB External Hard Drive compatible with both Windows and Mac operating systems without additional software?

Yes, the Seagate Expansion Portable 2TB External Hard Drive is compatible with both Windows and Mac operating systems without additional software.

WD Red Plus 10TB NAS Hard Disk Drive - 7200 RPM Class SATA 6Gb/s, CMR, 512MB Cache, 3.5 Inch - WD100EFGX

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Seagate Expansion Portable 2TB External Hard Drive HDD - 2.5 Inch USB 3.0, for Mac and PC with Rescue Services (STKM2000400)

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Options: 2TB

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Sleek and simple portable drive design for taking photos, movies, music, and more on-the-go;
Drag-and-drop file saving;
USB 3.0 powered;
Automatic recognition of Windows and Mac computers for simple setup (Reformatting required for use with Time Machine);
Enjoy peace of mind with the included limited warranty and Rescue Data Recovery Services.

🔥Don't forget your OS, we have Windows 11 OEM, Download and USB versions available

Overview

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Model
Brand	Seagate
Series	Expansion
Model	STKM2000400

Performance
Color	Black
Interface	USB 3.0
Capacity	2TB

Features
Features	The Seagate Expansion portable drive is compact and perfect for on-the-go. Instantly add more storage space to your PC or Mac and take large files with you when you travel. Setup is simple and straightforward; simply connect a single USB cable and you are ready to go. The drive is powered from the USB cable, so there is no need for an external power supply. Plus, it is automatically recognized by the Windows or Mac operating system, so there is no software to install and nothing to configure. Saving files is easy - simply drag-and-drop. Take advantage of the fast data transfer speeds with the USB 3.0 interface by connecting to a USB 3.0 port. Plus, Seagate Expansion comes with Rescue Data Recovery Services for additional peace of mind.
System Requirements	Compatible with most Windows and macOS systems. Visit seagate.com/os for details1,2 USB 3.0 port (required for USB 3.0 transfer speeds)2 1 Reformatting required for use with Time Machine. 2 Compatibility may vary depending on user's hardware configuration and operating system.

Dimensions & Weight
Form Factor	2.5"
Dimensions	0.50" x 3.15" x 4.54"
Weight	0.35 lb.

Packaging
Package Contents	Seagate Expansion portable hard drive 18-inch (45.72cm) USB 3.0 cable Quick start guide Rescue Data Recovery Services3 3 Rescue Data Recovery Services not available in all countries.

Additional Information
First Listed on Newegg	July 09, 2026

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Return for replacement within: non-replaceable
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Seagate Expansion Portable 2TB External Hard Drive HDD - 2.5 Inch USB 3.0, for Mac and PC with Rescue Services (STKM2000400)

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Customer Reviews of the Seagate STKM2000400

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

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Item#: 9SIBSZRM140739

Meet Your Seller

Seagate Expansion Portable 2TB External Hard Drive HDD - 2.5 Inch USB 3.0, for Mac and PC with Rescue Services (STKM2000400)

Learn more about the Seagate STKM2000400

Customer Reviews of the Seagate STKM2000400

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Return Policies

Manufacturer Contact Info