6 Best Alternatives to the SanDisk Professional 12TB G-Drive Desktop Drive (2026)
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You might look for sandisk professional 12tb g drive desktop drive alternatives if you need different storage capacities or connection types. The original drive offers a stackable aluminum enclosure and 7200RPM performance, which suits Mac users needing Time Machine support. However, you may prefer internal drives for NAS arrays or faster Thunderbolt connections for creative workflows. The listed options were chosen because their specs overlap with the original, providing similar or enhanced capabilities for various professional needs.
The top pick remains the SanDisk Professional 12TB G-Drive for its reliable bundle and compact design. Other choices include high-capacity Seagate Exos drives for internal NAS builds, offering robust enterprise-class performance. You can also consider the LaCie 2big Dock for Thunderbolt 3 speeds or the WD My Book Duo for hardware encryption. Each alternative addresses specific gaps, such as larger storage volumes, different interfaces, or enhanced security features, ensuring you find the right tool for your data management tasks.
Our top pick: SanDisk Professional 12TB G-Drive Desktop Drive.
Key differences between alternatives
Seagate Exos 26TB CMR Hard Drive
The Seagate Exos 26TB replaces the external desktop enclosure with a bare 3.5-inch internal drive. It offers double the storage capacity of the SanDisk drive while maintaining the same 7200RPM rotational speed. This model uses CMR recording technology and includes a 512MB cache for better sustained write performance. You lose the stackable aluminum case and Thunderbolt connectivity, but gain a drive suited for internal NAS arrays. Choose this if you are building a custom storage system rather than needing a ready-to-use desktop unit with Time Machine support.
Seagate Exos X22 20TB Renewed HDD
The Seagate Exos X22 20TB is a renewed enterprise drive that provides significant capacity in a compact 3.5-inch form factor. It matches the SanDisk drive’s 7200RPM speed but lacks the external enclosure and consumer-friendly features. This unit weighs only 1.83 pounds, making it lighter than the bulkier desktop bundle. It is designed for high-density storage arrays rather than direct desktop connection. Select this option if you prioritize raw capacity and enterprise reliability over convenience features like an included card reader or stackable design for Mac users.
Seagate Exos X20 20TB SAS Hard Drive
The Seagate Exos X20 20TB utilizes SAS connectivity instead of the standard SATA or Thunderbolt interfaces found on the SanDisk drive. It delivers 7200RPM performance in a 3.5-inch enterprise chassis. This drive is built for specialized server environments and RAID arrays, not general desktop use. You sacrifice the easy plug-and-play setup and Mac compatibility for robust enterprise-grade reliability. Pick this alternative only if your system supports SAS controllers and you need high-capacity internal storage for professional data centers or dedicated server racks.
Seagate LaCie 2big Dock 8TB Desktop Array
The LaCie 2big Dock 8TB offers Thunderbolt 3 connectivity, providing higher bandwidth than the SanDisk drive’s interface. It houses two drives in a RAID configuration, though total capacity is lower at 8TB. The unit features a compact desktop form factor with hardware encryption and quiet operation. It weighs more than the SanDisk bundle but offers a different connectivity standard for creative professionals. Choose this if you need faster data transfer speeds for video editing and do not require the higher 12TB capacity or stackable design of the original drive.
Western Digital 16TB My Book Duo Desktop RAID
The Western Digital My Book Duo 16TB provides double the storage capacity of the SanDisk drive in a similar desktop form factor. It supports RAID configurations for redundancy and includes hardware encryption for enhanced security. The drive connects via standard interfaces and lacks the Thunderbolt or Mac-specific Time Machine optimization. It is heavier and slightly wider than the SanDisk unit. Select this alternative if you need greater storage volume and data protection features for a Windows or mixed environment, rather than the specific Mac integration offered by the original.
Apricorn Aegis Fortress L3 1TB Encrypted SSD
The Apricorn Aegis Fortress L3 is a 1TB encrypted SSD, differing significantly from the SanDisk drive’s 12TB HDD capacity. It uses USB 3.0 connectivity and offers FIPS 140-2 Level 3 security certification. This portable unit is much smaller and lighter, weighing only 15.2 ounces. It sacrifices bulk storage capacity for high-speed encrypted access to small, sensitive datasets. Choose this if your priority is data security and portability for critical files, rather than the high-capacity archival storage and desktop presence provided by the SanDisk Professional G-Drive.
Quick picks
Our 7 picks
SanDisk Professional 12TB G-Drive Desktop Drive
Best for: Mac users needing Time Machine and stackable design
- Storage Capacity
- 12TB
- Rotational Speed
- 7200 RPM
- RAM Capacity
- 32GB RAM
- Dimensions
- 12.3 × 10.4 × 6.8 inches
- Weight
- 4.62 pounds
View on Amazon: SanDisk Professional 12TB G-Drive Desktop Drive Affiliate link
This bundle includes a 12TB desktop drive with an anodized aluminum enclosure. It uses a 7200RPM enterprise-class Ultrastar drive inside. The unit is Mac ready and Time Machine compatible. It also comes with a 6-foot Lightning cable and a 32GB SD card. The stackable design saves desk space. You get high performance in a compact gray chassis.
Pros
- 12TB storage capacity
- 7200RPM enterprise-class Ultrastar drive
- Stackable anodized aluminum enclosure
- Includes 32GB SD card and card reader
Cons
- Smaller 12TB capacity compared to 20TB and 26TB alternatives
- No Thunderbolt or USB-C connectivity mentioned
- Bundle items may not suit all workflows
Good fit if
- You need a Mac-compatible drive for Time Machine
- You prefer a stackable desktop design
- You want a bundle with media accessories
Skip if
- You require more than 12TB of storage
- You need Thunderbolt 3 connectivity
- You want a drive without extra accessories
Verdict: SanDisk Professional 12TB G-Drive Bundle offers reliable 7200RPM performance in a stackable aluminum case. It is ideal for Mac users who need Time Machine support and extra media cards.
Seagate Exos 26TB CMR Hard Drive
Best for: High-capacity internal NAS storage
- Storage Capacity
- 26TB
- Form Factor
- 3.5 in
- Hardware Interface
- SATA 6Gb/s
- Rotational Speed
- 7200 RPM
- Cache Size
- 512MB
- Recording Technology
- CMR
View on Amazon: Seagate Exos 26TB CMR Hard Drive Affiliate link
This Seagate Exos drive offers 26TB of storage in a 3.5-inch form factor. It uses CMR technology and runs at 7,200 RPM with a 512MB cache. The SATA 6Gb/s interface ensures wide compatibility. You get enterprise-class reliability and a high workload rating. It suits users needing large-scale, continuous storage for data-intensive applications.
Pros
- 26TB ultra-high storage capacity
- 7,200 RPM rotational speed
- CMR recording technology
- 512MB cache size
Cons
- Internal drive requires separate enclosure
- SATA interface limits transfer speeds
- No included mounting hardware
Good fit if
- You need maximum capacity per drive
- You build custom NAS systems
- You require enterprise reliability
Skip if
- You want a plug-and-play external drive
- You need Thunderbolt connectivity
- You prefer smaller 2.5-inch drives
Verdict: Seagate Exos 26TB 7200RPM SATA Drive is ideal for users building high-capacity internal storage arrays. It delivers reliable performance for data-intensive workloads.
Seagate Exos X22 20TB Renewed HDD
Best for: high-capacity enterprise storage arrays
- Storage Capacity
- 20TB
- Form Factor
- 3.5-inch
- Hardware Interface
- SATA 6Gb/s
- Rotational Speed
- 7200RPM
- Weight
- 1.83 pounds
View on Amazon: Seagate Exos X22 20TB Renewed HDD Affiliate link
This Seagate Exos X22 drive offers 20TB of storage in a 3.5-inch form factor. It spins at 7200 RPM and uses a SATA 6Gb/s interface. The helium side-sealing weld technology helps maintain reliability during large data transfers. You get a 2-year reseller warranty with this renewed unit. It suits users needing high capacity and enterprise-grade performance for their NAS or desktop setup.
Pros
- 20TB storage capacity for large datasets
- 7200 RPM rotational speed for faster access
- SATA 6Gb/s interface for broad compatibility
- Helium side-sealing weld technology for reliability
Cons
- Renewed condition may affect long-term reliability
- 2-year reseller warranty is shorter than standard
- No included external enclosure or RAID controller
Good fit if
- You need maximum capacity in a single drive
- You prefer enterprise-grade helium-sealed drives
- You are building a high-density storage array
Skip if
- You require a new unit with full manufacturer warranty
- You need a pre-assembled external drive solution
- You are looking for a budget-friendly consumer drive
Verdict: Seagate Exos X22 20TB Enterprise HDD provides robust capacity and speed for serious storage needs, making it ideal for users prioritizing volume and reliability over new-unit warranties.
Seagate Exos X20 20TB SAS Hard Drive
Best for: Enterprise RAID arrays requiring SAS connectivity
- Storage Capacity
- 20TB
- Form Factor
- 3.5-Inch
- Hardware Interface
- SAS 12Gb/s
- Rotational Speed
- 7200 RPM
- Cache Size
- 256MB
- Recording Technology
- CMR
View on Amazon: Seagate Exos X20 20TB SAS Hard Drive Affiliate link
This is a 20TB Seagate Exos X20 enterprise hard drive designed for data centers and RAID arrays. It uses SAS 12Gb/s dual-port connectivity and runs at 7200 RPM. The helium-sealed design and CMR recording ensure stable performance. It includes self-encryption and SuperParity error correction. You need a SAS HBA or RAID controller to use it, as it is not compatible with standard desktop PCs.
Pros
- 20TB storage capacity
- 7200 RPM rotational speed
- SAS 12Gb/s dual-port interface
- Helium-sealed CMR design
- Self-Encrypting Drive (SED) security
Cons
- Requires SAS HBA or RAID controller
- Not compatible with standard desktop PCs
- Sold as a renewed unit
Good fit if
- You need high-capacity storage for enterprise RAID arrays
- You require dual-port SAS connectivity for high availability
- You want a helium-sealed drive for efficiency
Skip if
- You are using a standard desktop PC
- You only have SATA ports available
- You need a plug-and-play external drive
Verdict: Seagate Exos X20 20TB Enterprise Drive fits users building specialized enterprise storage arrays who need SAS connectivity and high reliability. It is not suitable for general desktop use.
Seagate LaCie 2big Dock 8TB Desktop Array
Best for: Thunderbolt 3 creative professionals needing encryption
- Storage Capacity
- 8000GB
- Hardware Interface
- Thunderbolt 3
- Form Factor
- Desktop
- Dimensions
- 8.54 × 4.65 × 3.67 inches
- Weight
- 6.39 pounds
View on Amazon: Seagate LaCie 2big Dock 8TB Desktop Array Affiliate link
This LaCie desktop drive uses Thunderbolt 3 for high-speed data transfers. It holds 8 TB of data in a one-piece aluminum housing that reduces noise and vibration. The unit includes AES 256-bit encryption software and a Kensington lock slot. You get universal compatibility for on-the-go content creators who need mobility and durability. It supports RAID configurations via the dock.
Pros
- Thunderbolt 3 interface for fast transfer speeds
- One-piece aluminum housing reduces noise and vibration
- AES 256-bit encryption software included
- Kensington lock compatible with integrated cable lock
Cons
- 8 TB capacity is smaller than 12 TB or 16 TB alternatives
- No USB 3.1 Gen 2 speed listed for direct connection
- Heavier at 6.39 pounds compared to smaller drives
Good fit if
- You need Thunderbolt 3 connectivity for creative workflows
- You want hardware encryption for sensitive data
- You prefer a single aluminum enclosure for stability
Skip if
- You require more than 8 TB of storage
- You only have USB 3.0 ports available
- You need SAS connectivity for enterprise servers
Verdict: LaCie 2big Dock Thunderbolt 3 8TB is ideal for creators who prioritize Thunderbolt 3 speeds and secure, quiet operation in a compact desktop form factor.
Western Digital 16TB My Book Duo Desktop RAID
Best for: Users needing high capacity with hardware encryption
- Storage Capacity
- 16TB
- Hardware Interface
- USB 3.1, USB 3.0
- Form Factor
- Desktop
- Dimensions
- 6.3 × 3.94 × 7.09 inches
- Weight
- 5.2 pounds
View on Amazon: Western Digital 16TB My Book Duo Desktop RAID Affiliate link
The WD 16TB My Book Duo is a desktop RAID external drive with 16TB of storage. It uses USB 3.1 Gen 1 for data transfer and includes a USB 3.0 hub. The unit features 256-bit AES hardware encryption and password protection. It is ready for RAID-0 configurations out of the box. This drive suits users needing high capacity and data security in a single desktop unit.
Pros
- 16TB storage capacity for large media libraries
- 256-bit AES hardware encryption with password protection
- RAID-0 ready out of the box
- Includes two USB 3.0 hub ports
Cons
- USB 3.1 Gen 1 limits transfer speeds compared to Thunderbolt
- Heavier build at 5.2 pounds
- Larger footprint than single-drive enclosures
Good fit if
- You need 16TB of storage in a single desktop unit
- You require hardware encryption for sensitive data
- You want RAID-0 performance without complex setup
Skip if
- You need Thunderbolt 3 connectivity for faster speeds
- You prefer a lighter or more compact drive
- You want SAS interface compatibility
Verdict: WD 16TB My Book Duo Desktop RAID offers solid encryption and RAID readiness for users prioritizing capacity and security over maximum throughput.
Apricorn Aegis Fortress L3 1TB Encrypted SSD
Best for: FIPS 140-2 Level 3 encrypted portable storage
- Storage Capacity
- 1TB
- Hardware Interface
- USB 3.0
- Dimensions
- 4.75 × 3 × 0.6 inches
- Weight
- 15.2 ounces
View on Amazon: Apricorn Aegis Fortress L3 1TB Encrypted SSD Affiliate link
The Apricorn Aegis Fortress L3 is a portable SSD designed for high-security environments. It features 1TB of storage and connects via USB 3.0. The drive includes 256-bit AES XTS hardware encryption and holds FIPS 140-2 Level 3 validation. It measures 4.75 by 3 by 0.6 inches and weighs 15.2 ounces. This unit suits users who need certified data protection for sensitive files on the go.
Pros
- FIPS 140-2 Level 3 validated encryption
- 256-bit AES XTS hardware encryption
- Separate Admin and User modes
- USB 3.0 interface
Cons
- 1TB capacity is small compared to 12TB alternatives
- No RAID or dual-drive redundancy
- Single drive limits bulk storage needs
Good fit if
- You need FIPS 140-2 Level 3 compliance
- You require portable hardware encryption
- You store sensitive data on one drive
Skip if
- You need 12TB or more capacity
- You want a desktop RAID array
- You prioritize large storage over security
Verdict: The Apricorn 1TB Aegis Fortress L3 offers certified security for small, sensitive datasets. It fits users who need portable, encrypted storage rather than bulk capacity.
Specifications side by side
| Spec | SanDisk Professional 12TB G-Drive Desktop Drive | Seagate Exos 26TB CMR Hard Drive | Seagate Exos X22 20TB Renewed HDD | Seagate Exos X20 20TB SAS Hard Drive | Seagate LaCie 2big Dock 8TB Desktop Array | Western Digital 16TB My Book Duo Desktop RAID | Apricorn Aegis Fortress L3 1TB Encrypted SSD |
|---|---|---|---|---|---|---|---|
| Storage Capacity | 12TB | 26TB | 20TB | 20TB | 8000GB | 16TB | 1TB |
| Form Factor | not stated | 3.5 in | 3.5-inch | 3.5-Inch | not stated | not stated | not stated |
| Hardware Interface | not stated | SATA 6Gb/s | SATA 6Gb/s | SAS 12Gb/s | Thunderbolt 3 | USB 3.1, USB 3.0 | USB 3.0 |
| Rotational Speed | 7200 RPM | 7200 RPM | 7200RPM | 7200 RPM | not stated | not stated | not stated |
| Cache Size | not stated | 512MB | not stated | 256MB | not stated | not stated | not stated |
| Recording Technology | not stated | CMR | not stated | CMR | not stated | not stated | not stated |
| Workload Rate Limit | not stated | not stated | not stated | 550TB/year | not stated | not stated | not stated |
| RAM Capacity | 32GB RAM | not stated | not stated | not stated | not stated | not stated | not stated |
| Size | not stated | not stated | 20TB | not stated | 8 TB | 16TB | 1TB |
| Dimensions | 12.3 × 10.4 × 6.8 inches | not stated | not stated | not stated | 8.54 × 4.65 × 3.67 inches | 6.3 × 3.94 × 7.09 inches | 4.75 × 3 × 0.6 inches |
| Weight | 4.62 pounds | not stated | 1.83 pounds | not stated | 6.39 pounds | 5.2 pounds | 15.2 ounces |
| Color | Gray | not stated | Silver | not stated | argentée | Black | black |
| Model | 12TB_G-Drive | Exos ST26000NM000C | ST20000NM004E | ST20000NM003D | STGB8000400 | WDBFBE0160JBK-NESN | AFL3-S1TB |
Frequently asked questions
Can I use these alternatives for Time Machine backups on Mac?
Yes, several external desktop drives support this feature. The SanDisk Professional 12TB G-Drive is explicitly noted for Mac users needing Time Machine support. Its stackable aluminum case provides a stable base for continuous backups. Other external options like the LaCie 2big Dock and WD My Book Duo are also desktop arrays that function as reliable backup targets for macOS systems.
What is the maximum storage capacity available in these alternatives?
The Seagate Exos 26TB CMR Hard Drive offers the highest capacity at 26TB. This internal drive doubles the storage of the 12TB SanDisk model. Other high-capacity options include the 20TB Seagate Exos X22 and the 16TB Western Digital My Book Duo. These drives provide significant space for large media libraries or extensive data archives.
Do any of these drives use SAS connectivity instead of SATA?
Yes, the Seagate Exos X20 20TB SAS Hard Drive uses SAS connectivity. This interface is designed for enterprise RAID arrays rather than general desktop use. Most other alternatives, including the Seagate Exos 26TB and the 20TB Exos X22, utilize standard SATA interfaces. You should verify your system compatibility before choosing the SAS model for non-enterprise setups.
Which alternative is best for Thunderbolt 3 connections?
The LaCie 2big Dock 8TB Desktop Array is the top choice for Thunderbolt 3. It provides high-speed data transfer rates suitable for creative professionals. The drive features both Thunderbolt and USB-C interfaces for versatile connectivity. It also includes hardware encryption for secure data handling while maintaining a compact desktop form factor.
Are there options with hardware encryption for data security?
Yes, the Western Digital 16TB My Book Duo Desktop RAID offers solid hardware encryption. It is ideal for users prioritizing security alongside high capacity. The LaCie 2big Dock also includes secure operation features. For extreme security needs, the Apricorn Aegis Fortress L3 provides FIPS 140-2 Level 3 certified encryption for small, sensitive datasets.
Can I stack these external drives to save desk space?
The SanDisk Professional 12TB G-Drive features a stackable aluminum case. This design allows you to vertically stack multiple units to conserve desk space. Other desktop arrays like the LaCie 2big Dock and WD My Book Duo are standalone units. They do not mention stackable designs, so you may need additional shelving or stands for organization.
Is CMR recording technology important for these drives?
CMR technology is crucial for write performance and reliability in high-capacity drives. The Seagate Exos 26TB explicitly uses CMR recording technology, making it suitable for data-intensive workloads. This technology ensures consistent performance compared to SMR drives. It is a key specification for users building internal storage arrays that require sustained write speeds.