BarraCuda · 2.5-Inch Internal Hard Drive
Seagate BarraCuda 2.5-inch hard drive
Authorized Reseller · Best Pricing · Expert Guidance
High capacity, slim design. The perfect 2.5-inch hard drive for laptops, ultra-thin notebooks, external enclosures and compact desktops.
The highest capacity available in a 2.5-inch BarraCuda drive
The highest capacity, thinnest 2.5-inch hard drive for simple system upgrades
NAND flash, DRAM and media cache layers boost read and write speeds
Over 20 years of hard drive innovation and proven Seagate technology
What is the BarraCuda 2.5-inch hard drive?
Experience the ideal blend of storage and portability with the Seagate BarraCuda 2.5-inch hard drive. Offering capacities up to 5TB in a compact 7mm or 15mm form factor, it’s engineered to deliver reliable performance in space-constrained systems.
Power up your gaming rig, all-in-one PC or desktop setup with a wide range of capacities and 7mm or 15mm form factors. Discover the versatile SATA hard drive solution for nearly any PC application — from media storage to creative projects and gaming.
Ideal for laptops, ultra-thin notebooks, external enclosures and compact desktops. Whether you’re upgrading a laptop, building a compact desktop or expanding portable storage, the BarraCuda drive provides the speed, efficiency and durability you need without sacrificing capacity or compatibility.
Depend on over 20 years of hard drive innovation and proven Seagate technology. Easily migrate and clone your data with the included Seagate DiscWizard™ software, and rest easy with a two-year limited warranty for long-term confidence and support.
Should you choose the 7mm or 15mm BarraCuda 2.5-inch drive?
Big capacity in a small, 2.5-inch form factor — two thicknesses for two different jobs.
7mm — Laptop and Mobile Storage
Choose from 500GB to 2TB of massive storage. Experience the highest capacity, thinnest 2.5-inch hard drive in a slim 7mm form factor that makes system upgrades simple.
15mm — External and All-in-One PC
Utilize a 2.5-inch, 15mm form factor drive in 3TB, 4TB and 5TB capacities. This drive provides an excellent upgrade solution for your external hard drive, all-in-one or slim PC.
Consoles and Enclosures
The standard SATA interface means the drive is also widely supported in external hard drive enclosures, gaming consoles, docking stations and USB adapters.
Which features does the BarraCuda 2.5-inch share with the family?
Four things every drive in the family shares, regardless of form factor.
Multi-Tier Caching
By intelligently managing data flow across multiple layers — including high-speed NAND flash, DRAM and media cache — MTC significantly boosts performance, delivering faster load times, quicker application launches and smoother read and write speeds.
Trusted Dependability
For over 20 years, Seagate has proudly manufactured and delivered the reliable BarraCuda family of internal hard drives, and every drive comes with a robust limited warranty for long-term confidence.
DiscWizard™ Migration
Seagate DiscWizard™ software guides you step-by-step: clone your existing drive to your new Seagate drive, create and format partitions, transfer files seamlessly and back up important data.
Rescue Services
When the unexpected happens — like water damage or natural disaster — Rescue Services help you defend against data loss and retrieval costs so you can rest easier.
How much capacity fits in a 2.5-inch BarraCuda drive?
The same drive family in 7mm and 15mm heights, both using the standard SATA interface for easy integration.
BarraCuda 2.5-inch specifications
Headline specifications for the BarraCuda 2.5-inch line.
| Interface | SATA |
|---|---|
| Maximum capacity | 5TB |
| Capacity range (7mm) | 500GB to 2TB |
| Capacity range (15mm) | 3TB, 4TB, 5TB |
| Form factor | 2.5-inch, 7mm or 15mm height |
| Representative model | ST5000LM000 (5TB) |
| Caching | Multi-Tier Caching (MTC) — NAND flash, DRAM and media cache |
| Included software | Seagate DiscWizard™ |
| What’s included | BarraCuda 2.5-inch Hard Drive |
| Best for | Laptops, ultra-thin notebooks, external enclosures, compact desktops, all-in-one PCs |
| Data recovery | Rescue Services available |
| Limited warranty | 2 years |
Rescue Services help you defend against data loss and retrieval costs when the unexpected happens, and are not available in all countries. Verify that your system supports the drive thickness (typically 7mm or 15mm) and has the necessary power and data connections.
How does the BarraCuda 2.5-inch compare with the 3.5-inch drive?
Both share Multi-Tier Caching, DiscWizard migration software and the same two-year limited warranty. The form factor decides where each one fits.
| BarraCuda 2.5-inch | BarraCuda 3.5-inch | |
|---|---|---|
| Best for | Laptops, ultra-thin notebooks, external enclosures, compact desktops, all-in-one PCs | Desktop PCs, gaming rigs, new builds and upgrades |
| Maximum capacity | 5TB | 24TB |
| Form factor options | 7mm (500GB–2TB) and 15mm (3TB, 4TB, 5TB) | 3.5-inch |
| Interface | SATA | SATA |
| Caching | Multi-Tier Caching (MTC) — NAND flash, DRAM and media cache | Multi-Tier Caching (MTC) — NAND flash, DRAM and media cache |
| Representative model | ST5000LM000 (5TB) | ST8000DM004 (8TB) |
| Migration software | Seagate DiscWizard™ included | Seagate DiscWizard™ included |
| Rescue Services | Available | Available |
| Limited warranty | 2 years | 2 years |
Which internal drives are alternatives to the BarraCuda 2.5-inch?
BarraCuda is the desktop and laptop line. These are the purpose-built alternatives for other workloads.
BarraCuda 2.5-inch installation guides
Guidance on choosing, installing and getting the most from an internal drive.
BarraCuda 2.5-inch hard drive: frequently asked questions
Compatibility, installation and form-factor answers for the BarraCuda 2.5-inch hard drive.
A 2.5-inch hard drive is a type of storage device commonly used in laptops, external drives, gaming consoles and compact desktop systems. The 2.5-inch refers to the physical size of the drive platter, not its storage capacity. These drives are smaller and lighter than their 3.5-inch counterparts, making them ideal for portable and space-constrained devices. Despite their compact size, they can offer large storage capacities of up to 5TB or more while remaining energy efficient and cost effective.
It is compatible with a wide range of devices thanks to its compact size and standard SATA interface. It’s most commonly used in laptops, but is also widely supported in external hard drive enclosures, gaming consoles (such as PlayStation® and Xbox® systems), compact desktop PCs, all-in-one computers and some NAS systems. Many docking stations and USB adapters also support 2.5-inch drives. Verify that your system supports the drive thickness (typically 7mm or 15mm).
Yes, you can use a BarraCuda 2.5" hard drive in a desktop using the appropriate mounting hardware for proper fit and connectivity.
Power off your laptop and disconnect it from all power sources, including the battery if removable. Open the back panel or drive bay, referring to your laptop’s manual for exact instructions. Carefully remove the old hard drive if replacing one and disconnect it from the SATA connector. Slide the new drive into the same slot and confirm a snug connection to the SATA interface. Secure the drive with any required screws or brackets, then close the panel. Power on and enter the BIOS to verify the drive is recognized, then install your operating system or use Seagate’s free DiscWizard software to clone your old drive and migrate your data.
The 7mm drive covers 500GB to 2TB and is the highest capacity, thinnest 2.5-inch hard drive — a slim form factor that makes laptop and mobile system upgrades simple. The 15mm drive covers 3TB, 4TB and 5TB and is an excellent upgrade for external hard drives, all-in-one systems and slim PCs where the extra height is available.
All 2.5-inch drives in the BarraCuda family come equipped with advanced multi-tier caching (MTC) technology. By intelligently managing data flow across multiple layers — including high-speed NAND flash, DRAM and media cache — MTC significantly boosts performance, delivering faster load times, quicker application launches and smoother read and write speeds.
Yes. Seagate DiscWizard™ software simplifies adding new drives by guiding you step-by-step: clone your existing drive to your new Seagate drive, create and format partitions, transfer files seamlessly and back up important data.
A two-year limited warranty for long-term confidence and support. Rescue Services are also available to help defend against data loss and retrieval costs.
Our storage specialists are here to help. BlueAlly (DiskDataWorks.com) is an authorized Seagate reseller — call 844-356-5142 or request a quote online.
Buy a BarraCuda 2.5-inch drive from an authorized reseller
Our storage specialists are here to help you find the right drive for your system. Request BarraCuda 2.5-inch capacity and form-factor guidance plus authorized-reseller pricing from BlueAlly.
Form-factor and thickness compatibility check (7mm or 15mm)
Capacity sizing for your library and growth
Migration guidance with Seagate DiscWizard
Authorized-reseller pricing with full warranty coverage
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