What's the maximum speed at which I can transfer data with this hard drive?

The maximum speed at which data can be transferred with this hard drive is up to 550MB/s.

What are the dimensions and weight of this product?

The dimensions of the product are 3.67 inches x 4.65 inches x 8.54 inches, and its weight is 8.51 lbs.

Is this external hard drive compatible with different operating systems?

Yes, this external hard drive is compatible with most Windows, macOS systems, and iPad USB-C.

Does this external hard drive come with any additional software?

Yes, this external hard drive includes a 1-month complimentary membership to the Adobe Creative Cloud All Apps plan.

Can I connect multiple devices to this external hard drive?

Yes, the external hard drive supports connecting multiple devices through its dual Thunderbolt 3 ports, which allow daisy chaining up to 5 devices.

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LaCie 2big Dock 40TB USB 3.2 Gen 2 External Hard Drive STLG40000400 Black

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STLG40000400
USB 3.2 Gen 2
RAID 0/1

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

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Best Seller Ranking	#59 in Desktop External Hard Drives

Model
Brand	LaCie
Series	2big Dock
Model	STLG40000400

Performance
Color	Black
Thunderbolt	Yes
Interface	USB 3.2 Gen 2
Capacity	40TB
RAID	RAID 0/1

Features
Features	Features up to 40TB of capacity and speeds of up to 550MB/s Stay connected with CFexpress B, CFast 2.0, and SD card slots, a USB 3.2 Type A hub port, and a DisplayPort 1.4 Dual Thunderbolt 3 ports daisy chain up to 5 devices Easily configure RAID 0/1 optimal system performance and data redundancy Works with Windows, iPad USB-C, and Mac Connect or charge USB devices with the front USB 3.2 Gen 2 Type A hub port Thunderbolt and DisplayPort 1.4 allow you to connect two 4k monitors or one 8k monitor Equipped with hot-swappable IronWolf Pro enterprise-class drives for ultimate reliability 1-month complimentary membership to Adobe Creative Cloud All Apps plan
System Requirements	Interface: Thunderbolt 3 + USB 3.1 (THUNDERBOLT 3 + USB 3.1) Works With USB-C host: USB4, USB 3.0, Thunderbolt 4, Thunderbolt 3 Compatible with most Windows, macOS systems, and iPad USB-C. Visit lacie.com/os for details1 2 1 Reformatting may be required for use with Time Machine. 2 Compatibility may vary depending on user's hardware configuration and operating system.

Dimensions & Weight
Dimensions	3.67" x 4.65" x 8.54"
Weight	8.51 lbs.

Packaging
Package Contents	LaCie 2Big Dock Thunderbolt 3 USB-C cable External power supply Quick Install Guide ADOBE CC SRS60 TOOLKIT3 Rescue Data Recovery Services4 3 One-month membership to Adobe Creative Cloud All Apps plan is redeemable during product registration. Must redeem within one year of drive registration. Not available in China. Internet connection and Adobe ID required. Available only to users 13 and older. 4 Not available in all countries.

Additional Information
First Listed on Newegg	July 31, 2026

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LaCie 2big Dock 40TB USB 3.2 Gen 2 External Hard Drive STLG40000400 Black

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Item#: 9SIA8N2M381853

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LaCie 2big Dock 40TB USB 3.2 Gen 2 External Hard Drive STLG40000400 Black

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