Looking Beyond the Apricorn Aegis Padlock 500GB Encrypted? 6 Alternatives Worth a Look
As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.
The Apricorn Aegis Padlock 500GB external drive focuses on data protection with 256-bit AES XTS hardware encryption, a wear-resistant keypad, and a software-free setup over USB 3.0. Reviewing apricorn 500gb aegis padlock USB alternatives makes sense if your storage needs exceed 500 GB or if you prefer a different form factor. While this 8-ounce drive physically shields files with a tough epoxy coating, you might prefer multi-terabyte capacities, desktop designs, or models from brands like Western Digital and Seagate.
The 6 alternatives in this guide were chosen because their hardware specifications overlap with the original drive. Each drive connects through a standard USB 3.0 interface to support everyday data transfers across PC and Mac systems. These selections expand your capacity options up to 4TB, offering both slim portable enclosures and stationary desktop units. Evaluating these published specifications helps you balance storage capacity, physical dimensions, and hardware-based data security for your setup.
Our top pick: Apricorn Aegis Padlock 500GB Encrypted External Drive.
Comparing the Top Apricorn Padlock Alternatives
Seagate Backup Plus Slim 2TB Portable Hard Drive
The Seagate Backup Plus Slim provides 2TB of storage, giving you four times the capacity of the 500GB Apricorn Aegis Padlock. It measures 0.48 inches thick and weighs 4.8 ounces, making it thinner and lighter than the 0.75-inch, 8-ounce Apricorn drive. This model features a red finish and works with PC and Mac over USB 3.0. You give up the Apricorn's physical wear-resistant keypad, 256-bit AES XTS hardware encryption, epoxy coating, and brute-force self-destruct feature. Choose the Seagate Backup Plus Slim if you need a slimmer, lighter portable drive for everyday backups and do not require PIN-based hardware security.
Silicon Power Armor A80 2TB Portable Hard Drive
The Silicon Power Armor A80 upgrades capacity to 2TB, compared to the 500GB Apricorn Aegis Padlock. It features a blue shockproof and waterproof enclosure designed for physical drive protection. Measuring 8.66 inches long and weighing 11.6 ounces, it is larger and heavier than the 4.5-inch, 8-ounce Apricorn drive. Both drives share a standard USB 3.0 hardware interface. However, the Armor A80 lacks the Apricorn's onboard PIN keypad, 256-bit AES XTS hardware encryption, epoxy seal, and brute-force self-destruct protection. You should pick the Silicon Power Armor A80 if you prioritize water and drop resistance alongside higher portable capacity over keypad-locked data encryption.
WD 2TB My Passport Ultra External Drive
The WD My Passport Ultra provides 2TB of storage, offering four times the space of the 500GB Apricorn Padlock. It maintains a comparable footprint at 4.33 inches long, 3.21 inches wide, 0.83 inches thick, and matches the Apricorn's 8-ounce weight. This drive includes optional 256-bit AES hardware encryption and a 3-year limited warranty over USB 3.0. You forfeit the Apricorn's physical wear-resistant keypad, software-free PIN entry, brute-force self-destruct mechanism, and epoxy coating against physical intrusion. Choose the WD My Passport Ultra if you want encrypted storage with significantly more space and a manufacturer warranty, without managing a built-in physical keypad.
Seagate Backup Plus Hub 4TB Desktop Hard Drive
The Seagate Backup Plus Hub offers 4TB of storage, delivering eight times the space of the 500GB Apricorn Padlock. As a desktop unit measuring 7.8 inches high and weighing 2.34 pounds, it adds dual USB 3.0 hub ports for connecting workstation gear. It supports both PC and Mac setups. In exchange, you lose the Apricorn's 8-ounce portable form factor, wear-resistant keypad, software-free access, 256-bit AES XTS hardware encryption, and brute-force self-destruct defenses. Pick the Seagate Backup Plus Hub if you need high stationary storage capacity and extra USB workstation ports rather than a secure, pocket-sized external drive.
WD 3TB My Book Desktop External Hard Drive
The WD My Book Desktop provides 3TB of external storage, giving you six times the capacity of the 500GB Apricorn Padlock. It features a desktop form factor measuring 6.7 inches high, 5.5 inches long, and 1.9 inches wide, and includes hardware encryption over USB 3.0. Unlike the Apricorn, it does not have a physical wear-resistant keypad, software-free PIN entry, brute-force wipe capabilities, or a tamper-resistant epoxy coating. It is also designed for stationary workstation placement rather than travel. Select the WD My Book Desktop if you need large-capacity hardware-encrypted backups for your desk setup and do not require portable, keypad-based security.
Western Digital Elements 4TB Portable External Hard Drive
The Western Digital Elements portable drive provides 4TB of storage space, which is eight times the capacity of the 500GB Apricorn Aegis Padlock. It maintains a compact footprint at 4.4 inches long, 3.2 inches wide, 0.83 inches thick, and weighs 8.32 ounces. It connects via USB 3.0 and supports both PC and Mac systems. You trade away the Apricorn's physical wear-resistant PIN keypad, FIPS PUB 197 validated 256-bit AES XTS hardware encryption, epoxy coating, and brute-force self-destruct function. Choose the Western Digital Elements if you want high-capacity portable storage for everyday cross-platform file transfers and do not require specialized hardware security features.
Quick picks
Our 7 picks
Apricorn Aegis Padlock 500GB Encrypted External Drive
Best for: hardware-encrypted portable data security
- Storage Capacity
- 500 GB
- Hardware Interface
- USB 3.0
- Dimensions
- 4.5 × 0.75 × 3.25 inches
- Weight
- 8 ounces
View on Amazon: Apricorn Aegis Padlock 500GB Encrypted External Drive
The Apricorn Aegis Padlock 500GB Encrypted Drive is a compact portable hard drive built for hardware-level security. It features onboard 256-bit AES XTS encryption unlocked via an integrated wear-resistant keypad, removing the need for software installation or administrative access on host machines. With a 500GB capacity and a USB 3.0 connection, it suits you if you need to transport sensitive documents safely across different workstations without leaving software traces.
Pros
- Hardware-based 256-bit AES XTS encryption with onboard keypad PIN entry
- Software-free operation requires no host administrative privileges
- Internal electronics sealed in epoxy coating against physical tampering
- Brute-force self-destruct mechanism wipes data upon repeated failed attempts
Cons
- 500GB storage capacity is limited compared to multi-terabyte drives
- USB 3.0 connection lacks native USB-C interface support
Good fit if
- You need hardware-managed data encryption without installing host software.
- You require physical tamper protection and PIN-based keypad authentication.
Skip if
- You need multi-terabyte storage for large media collections.
- You prefer managing external drive passwords purely through operating system software.
Verdict: Apricorn Aegis Padlock 500GB Encrypted Drive provides dedicated hardware security and physical keypad authentication for critical files. It prioritizes independent encryption and tamper defense over maximum storage capacity.
Seagate Backup Plus Slim 2TB Portable Hard Drive
Best for: slim, everyday portable storage and backups
- Storage Capacity
- 2TB
- Hardware Interface
- USB 3.0
- Compatibility
- PC, Mac
- Dimensions
- 4.47 × 2.99 × 0.48 inches
- Weight
- 4.8 ounces
View on Amazon: Seagate Backup Plus Slim 2TB Portable Hard Drive
The Seagate Backup Plus Slim 2TB Portable Hard Drive gives you 2TB of storage in an enclosure measuring 0.48 inches thick and weighing 4.8 ounces. It connects to Windows and Mac computers over an included USB 3.0 cable for single-click or automated daily backups. This drive suits you if you need lightweight, pocket-friendly external storage for common files without complex security hardware.
Pros
- Slim 0.48-inch thickness with metal enclosure
- Lightweight build at 4.8 ounces
- Compatible with both Windows and Mac operating systems
- Includes USB 3.0 cable for plug-and-play connectivity
Cons
- No integrated hardware encryption keypad
- Lacks water or shock resistance ratings
Good fit if
- You need 2TB of portable storage in a slim 0.48-inch chassis.
- You want scheduled automated backups for Windows or Mac computers.
- You prefer a lightweight drive weighing under 5 ounces.
Skip if
- You require onboard PIN authentication and hardware encryption.
- You need a rugged enclosure rated for drops or water exposure.
Verdict: Seagate Backup Plus Slim 2TB Portable Hard Drive delivers high portable capacity in a thin 4.8-ounce metal chassis for everyday Windows and Mac file storage.
Silicon Power Armor A80 2TB Portable Hard Drive
Best for: durable everyday USB 3.0 file backup
- Storage Capacity
- 2TB
- Hardware Interface
- USB 3.0
- Dimensions
- 8.66 × 3.15 × 1.18 inches
- Weight
- 11.6 ounces
View on Amazon: Silicon Power Armor A80 2TB Portable Hard Drive
The Silicon Power Armor A80 is a 2TB portable hard drive built with a shockproof and waterproof aluminum body. It connects via a USB 3.0 hardware interface for daily data transfers. At 11.6 ounces and 1.18 inches thick, it offers four times the storage capacity of a standard 500GB drive while adding physical protection. You will find it suitable if you need durable portable storage for travel.
Pros
- 2TB storage capacity
- USB 3.0 hardware interface
- Shockproof and waterproof aluminum body
- Capacity options available up to 5TB
Cons
- No integrated PIN keypad or hardware encryption listed
- Heavier than standard slim portables at 11.6 ounces
Good fit if
- You need 2TB of storage with shockproof and waterproof protection.
- You transfer data via USB 3.0 connections.
Skip if
- You require built-in keypad authentication or hardware encryption.
- You want a pocket-sized drive thinner than 1.18 inches.
Verdict: Silicon Power Armor A80 2TB Rugged Hard Drive delivers 2TB of portable storage inside a shockproof and waterproof enclosure. It is a solid USB 3.0 option when physical drive protection matters more to you than onboard PIN encryption.
WD 2TB My Passport Ultra External Drive
Best for: encrypted portable storage with high capacity
- Storage Capacity
- 2TB
- Hardware Interface
- USB 3.0
- Dimensions
- 4.33 × 3.21 × 0.83 inches
- Weight
- 8 ounces
The WD 2TB My Passport Ultra is a portable external hard drive with optional 256-bit AES hardware encryption. You get 2TB of storage capacity over a standard USB 3.0 connection, along with automated local and cloud backup software. It measures 4.33 inches long and weighs 8 ounces, making it easy to carry. This drive suits you if you need hardware-level data security with four times the space of a 500GB model.
Pros
- Optional 256-bit AES hardware encryption
- 2TB storage capacity in an 8-ounce enclosure
- Includes automatic local and cloud backup features
- Backing from a 3-year limited warranty
Cons
- Requires reformatting before use with macOS
- Uses USB 3.0 connection rather than USB-C
Good fit if
- You want 256-bit AES hardware encryption without an onboard physical keypad.
- You need 2TB of portable storage capacity with local and cloud backup tools.
Skip if
- You use a Mac out of the box and want to avoid reformatting.
- You prefer hardware-based keypad authentication directly on the drive.
Verdict: WD 2TB My Passport Ultra Encrypted Drive delivers 2TB of secure storage with optional 256-bit AES hardware encryption and a 3-year limited warranty. It provides a spacious, portable option if you want reliable data protection over standard USB 3.0.
Seagate Backup Plus Hub 4TB Desktop Hard Drive
Best for: stationary desktop backups needing extra USB connectivity
- Storage Capacity
- 4TB
- Hardware Interface
- USB 3.0
- Form Factor
- Desktop
- Compatibility
- PC, Mac
- Dimensions
- 4.65 × 1.61 × 7.8 inches
- Weight
- 2.34 pounds
View on Amazon: Seagate Backup Plus Hub 4TB Desktop Hard Drive
The Seagate Backup Plus Hub 4TB Desktop Hard Drive gives you a high-capacity stationary storage setup with integrated connectivity. It features a USB 3.0 interface and dual front-facing USB 3.0 ports that let you charge devices or connect accessories. At 2.34 pounds and 7.8 inches tall, it fits fixed desktop workstations rather than mobile use, suiting you if you need bulk local backups instead of compact encrypted security.
Pros
- 4TB storage capacity
- Two integrated USB 3.0 hub ports for device charging and transfers
- Includes downloadable NTFS driver for Mac and Windows compatibility
- Four-month Adobe Creative Cloud Photography plan offer included
Cons
- Desktop form factor weighing 2.34 pounds is not pocket portable
- Lacks hardware encryption keypad found on dedicated secure drives
Good fit if
- You need 4TB of stationary desktop storage with extra USB charging ports.
- You work across both Windows and Mac operating systems.
- You want high-capacity local backups rather than portable physical security.
Skip if
- You need a bus-powered, lightweight drive for travel.
- You require onboard hardware PIN encryption for sensitive files.
Verdict: Seagate Backup Plus Hub 4TB Desktop Hard Drive provides substantial stationary capacity alongside handy dual USB 3.0 hub ports for your workstation. It trades hardware encryption and pocket mobility for massive backup volume and desktop connectivity.
WD 3TB My Book Desktop External Hard Drive
Best for: secure desktop backups needing high storage capacity
- Storage Capacity
- 3TB
- Hardware Interface
- USB 3.0
- Form Factor
- Desktop
- Dimensions
- 5.5 × 1.9 × 6.7 inches
- Weight
- 5.92 ounces
The WD 3TB My Book Desktop External Hard Drive provides stationary storage with built-in password protection and hardware encryption. It connects via a USB 3.0 port and works with included WD Backup software alongside Time Machine. Its desktop casing stands 6.7 inches tall on your desk. This suits you if you need fixed desktop capacity with hardware-based access control.
Pros
- Password protection with built-in hardware encryption
- 3TB storage capacity for local system backups
- Included WD Backup software with Time Machine compatibility
- 3-year manufacturer's limited warranty
Cons
- Desktop form factor measuring 6.7 inches high is not pocket-portable
- No integrated physical PIN keypad listed
Good fit if
- You need 3TB of stationary desktop storage with hardware encryption.
- You use WD Backup software or Time Machine for automated data backups.
Skip if
- You need a compact, portable external hard drive for travel.
- You prefer an integrated physical keypad on the drive casing for access.
Verdict: WD 3TB My Book Desktop External Hard Drive delivers hardware encryption and 3TB capacity for stationary workstation setups. It reliably manages automated backups through a standard USB 3.0 desktop interface.
Western Digital Elements 4TB Portable External Hard Drive
Best for: high-capacity portable storage on PC and Mac
- Storage Capacity
- 4TB
- Hardware Interface
- USB 3.2 Gen 1/USB 3.0
- Compatibility
- PC, Mac
- Dimensions
- 4.4 × 3.2 × 0.83 inches
- Weight
- 8.32 ounces
View on Amazon: Western Digital Elements 4TB Portable External Hard Drive
The Western Digital 4TB Elements is a portable external hard drive with USB 3.2 Gen 1 connectivity. It offers 4TB of storage in a compact enclosure measuring 4.4 by 3.2 by 0.83 inches and weighing 8.32 ounces. You get plug-and-play operation for both PC and Mac with data transfer rates up to 5Gbps. It suits you if you prioritize high capacity and portability over dedicated hardware PIN keypads.
Pros
- 4TB storage capacity
- SuperSpeed USB 3.2 Gen 1 interface up to 5Gbps
- Compact 8.32-ounce portable form factor
- Plug-and-play support for PC and Mac
Cons
- No integrated hardware encryption or physical keypad
- No water or shock resistance ratings listed
Good fit if
- You need 4TB of portable storage for documents, photos, and video.
- You want simple plug-and-play connectivity on PC or Mac.
- You prefer a lightweight drive weighing under 9 ounces.
Skip if
- You require an onboard PIN keypad for hardware security.
- You need a rugged enclosure rated for water or drop protection.
Verdict: Western Digital 4TB Elements Portable Hard Drive delivers substantial external storage and 5Gbps speeds in a compact, plug-and-play format. It trades physical hardware security features for everyday portability and high capacity.
Specifications side by side
| Spec | Apricorn Aegis Padlock 500GB Encrypted External Drive | Seagate Backup Plus Slim 2TB Portable Hard Drive | Silicon Power Armor A80 2TB Portable Hard Drive | WD 2TB My Passport Ultra External Drive | Seagate Backup Plus Hub 4TB Desktop Hard Drive | WD 3TB My Book Desktop External Hard Drive | Western Digital Elements 4TB Portable External Hard Drive |
|---|---|---|---|---|---|---|---|
| Storage Capacity | 500 GB | 2TB | 2TB | 2TB | 4TB | 3TB | 4TB |
| Hardware Interface | USB 3.0 | USB 3.0 | USB 3.0 | USB 3.0 | USB 3.0 | USB 3.0 | USB 3.2 Gen 1/USB 3.0 |
| Form Factor | not specified | not specified | not specified | not specified | Desktop | Desktop | not specified |
| Compatibility | not specified | PC, Mac | not specified | not specified | PC, Mac | not specified | PC, Mac |
| Size | 500 GB | 2TB | 2TB | 2TB | 4TB | 3TB | 4TB |
| Dimensions | 4.5 × 0.75 × 3.25 inches | 4.47 × 2.99 × 0.48 inches | 8.66 × 3.15 × 1.18 inches | 4.33 × 3.21 × 0.83 inches | 4.65 × 1.61 × 7.8 inches | 5.5 × 1.9 × 6.7 inches | 4.4 × 3.2 × 0.83 inches |
| Weight | 8 ounces | 4.8 ounces | 11.6 ounces | 8 ounces | 2.34 pounds | 5.92 ounces | 8.32 ounces |
| Color | Black | Red | blue | Black | not specified | Black | Black |
| Model | A25-3PL256-500 | STDR2000103 | FBA_SP020TBPHDA80S3B | WDBBKD0020BBK-NESN | STEL4000300 | WDBBGB0030HBK-NESN | WDBU6Y0040BBK-WESN |
If you need extra ports for encrypted storage, acer USB c hub alternatives provide different connection speeds and port layouts.
Frequently asked questions
Which alternative offers hardware encryption like the Apricorn Aegis Padlock?
The WD 2TB My Passport Ultra and WD 3TB My Book offer hardware encryption. If you need portable security, the My Passport Ultra provides optional 256-bit AES hardware encryption in an 8-ounce enclosure. For stationary workstations, the desktop WD My Book delivers 3TB of encrypted storage over USB 3.0 without physical keypad authentication.
What is the highest capacity portable drive among these alternatives?
The Western Digital Elements 4TB Portable External Hard Drive provides the highest portable capacity on this list. It delivers 4TB of storage and 5Gbps transfer speeds over a standard USB 3.0 interface. It works across PC and Mac systems, weighing 8.32 ounces in a compact chassis measuring 0.83 inches thick.
Can you find a rugged portable alternative with physical protection?
Yes, the Silicon Power Armor A80 2TB provides physical protection with a shockproof and waterproof enclosure. While it lacks onboard PIN keypad authentication, it protects your files against physical drops and water exposure. The drive connects via USB 3.0, weighs 11.6 ounces, and measures 8.66 inches long.
How do desktop hard drive alternatives differ from the Apricorn Aegis Padlock?
Desktop alternatives prioritize stationary capacity and extra connectivity over pocket portability. For instance, the Seagate Backup Plus Hub delivers 4TB of storage and includes dual front-facing USB 3.0 hub ports for your workstation. However, it weighs 2.34 pounds and requires a fixed desk setup rather than carrying it on the go.
Which alternative is compatible with both PC and Mac out of the box?
The Seagate Backup Plus Slim, Seagate Backup Plus Hub, and Western Digital Elements explicitly support both PC and Mac operating systems. These models connect through standard USB 3.0 ports to transfer files across platforms. In contrast, the Apricorn Aegis Padlock relies on its built-in hardware keypad for system-independent access without OS-specific setup software.
Do standard portable drives require PIN entry like the Apricorn Aegis Padlock?
No, standard portable alternatives do not require physical PIN keypad entry before accessing stored files. Drives like the Western Digital Elements 4TB or Silicon Power Armor A80 2TB offer immediate plug-and-play access over USB 3.0. You simply connect the cable to your computer without entering an alphanumeric access code on an onboard keypad.
Which alternative works best if you need extra USB ports for accessories?
The Seagate Backup Plus Hub 4TB Desktop Hard Drive is designed specifically with dual integrated USB 3.0 hub ports. This setup lets you connect additional accessories directly through the drive on your desk. It provides 4TB of stationary storage for PC and Mac while expanding your available workstation USB connections.