Looking Beyond the SSK 1TB 20Gbps Portable SSD? 6 Alternatives Worth a Look
As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.
The SSK 1TB 20Gbps Portable SSD delivers high-speed transfers up to 2000MB/s for video workflows. If you need different specs, these ssk 1tb portable SSD external alternatives offer other options. This drive uses USB 3.2 Gen2x2 for maximum bandwidth. It includes both USB-C and USB-A cables for broader compatibility. The unit measures 1.46 by 0.42 by 2.93 inches and weighs 2.12 ounces. You get S.M.A.R.T. health diagnostics and adaptive TRIM to maintain performance.
You might look elsewhere if you need more storage capacity or a different interface. Some users prefer SATA drives for internal upgrades or NVMe SSDs for desktops. Others may want rugged designs or hardware encryption for sensitive data. The 6 alternatives listed here share key specifications with the original SSK drive. They cover various form factors, including 2.5-inch SATA and M.2 NVMe options. Each choice targets specific use cases, from iPhone recording to basic internal storage. Review the specs to find the best fit for your system.
Comparing Alternatives to the SSK
Dylesn 1TB Portable SSD
The Dylesn 1TB Portable SSD matches the SSK’s 20Gbps transfer speed, making it a viable contender for high-bandwidth tasks. However, its physical footprint is significantly smaller, measuring just 0.75 by 1.1 inches. This compact form factor appeals to users needing minimal bulk. The listed model number suggests a 512GB capacity, which creates confusion against its 1TB label. If you prioritize extreme portability alongside fast speeds, this drive offers a smaller profile. You sacrifice some clarity on exact specifications for that reduced size. It remains a strong option for creators who need speed without the larger dimensions of the SSK drive.
SanDisk SSD Plus 2TB SATA III SSD
The SanDisk SSD Plus 2TB SATA III SSD serves a completely different purpose than the SSK. It is an internal 2.5-inch drive rather than a portable external unit. This drive offers double the storage capacity at 2TB, fitting users who need bulk storage for desktop upgrades. It relies on the SATA III interface, which caps speeds well below the SSK’s 2000MB/s. You gain capacity and compatibility with older motherboards but lose the high-speed external connectivity. This option suits those building or upgrading a PC who do not need a portable solution. It provides reliable storage without the premium cost of NVMe drives, focusing on capacity over raw performance.
iStorage diskAshur2 128GB Encrypted SSD
The iStorage diskAshur2 128GB Encrypted SSD prioritizes security over speed and capacity. It features hardware encryption and password protection, which the SSK lacks. This drive is ideal for users storing sensitive data that requires physical security measures. It has a much smaller 128GB capacity and a larger, ruggedized build compared to the sleek SSK. Transfer speeds are not listed as high, making it unsuitable for large video files. You trade performance and space for robust data protection. This drive is best for professionals handling confidential information who need a tamper-resistant solution. It is a niche choice for security-focused users rather than general storage needs.
SanDisk Extreme 500GB Portable SSD
The SanDisk Extreme 500GB Portable SSD offers a rugged design with a lower capacity of 500GB. It uses a USB-C interface but does not support the 20Gbps speed of the SSK. This drive is built for durability, making it suitable for users who need a tough, compact storage solution. The transfer speeds are lower, capping around 550MB/s. You gain a more rugged form factor but lose significant speed and storage space. This option is ideal for travelers or field workers who prioritize physical protection over high-bandwidth performance. It is a practical choice for smaller files where ruggedness is more important than raw transfer rates.
Intel 660p 1TB NVMe M.2 SSD
The Intel 660p 1TB NVMe M.2 SSD is an internal drive, not an external portable unit. It uses the NVMe interface over PCIe, offering speeds up to 1800MB/s. This makes it a strong internal storage upgrade for desktops or laptops. It lacks the USB connectivity and portability of the SSK. You gain high performance for internal tasks but lose the ability to easily transfer files between devices. This drive is best for users upgrading their main system storage who do not need an external backup solution. It provides solid performance for everyday computing without the need for external cables or enclosures.
Intel D3-S4510 240GB 2.5-Inch SATA SSD
The Intel D3-S4510 240GB 2.5-Inch SATA SSD is another internal drive option. It uses the SATA III interface, similar to the SanDisk 2TB model. This drive offers basic performance suitable for everyday computing tasks. It has a small 240GB capacity, which is significantly less than the SSK’s 1TB. You gain compatibility with standard 2.5-inch bays but lose the high speed and portability of the SSK. This option is best for users needing a reliable, basic internal drive for older systems. It is not suitable for users requiring high-speed external storage or large capacities for media workflows.
Quick picks
Our 7 picks
SSK 1TB 20Gbps Portable SSD
Best for: Fast external storage for video workflows
- Storage Capacity
- 1 TB
- Interface
- USB 3.2 Gen2x2
- Max Read Speed
- Up to 2000MB/s
- Transfer Speed
- 20Gbps
- Features
- TRIM
- Dimensions
- 2.93 × 1.46 × 0.42 inches
View on Amazon: SSK 1TB 20Gbps Portable SSD Affiliate link
The SSK 1TB Portable SSD delivers sequential read speeds up to 2000MB/s via a USB 3.2 Gen2x2 interface. It includes both a 20Gbps USB-C cable and a 10Gbps USB-A cable for broad device compatibility. The drive features S.M.A.R.T. diagnostics and adaptive TRIM to maintain performance. Its compact, lightweight design makes it suitable for users needing fast external storage for large files.
Pros
- Max read speed of 2000MB/s
- USB 3.2 Gen2x2 interface
- Includes 20Gbps and 10Gbps cables
- S.M.A.R.T. health diagnostics
Cons
- Requires USB 3.2 Gen2x2 port for full speed
- 1TB capacity is smaller than 2TB alternatives
- No hardware encryption mentioned
Good fit if
- You need fast transfers for video editing
- You have devices with USB-C Gen2x2 ports
- You want a lightweight portable drive
Skip if
- You only have older USB 3.0 ports
- You require hardware encryption
- You need more than 1TB storage
Verdict: SSK 1TB Portable SSD 20Gbps suits creators who prioritize raw transfer speeds and have compatible high-bandwidth ports. It is less ideal for users relying on older USB-A connections or those needing higher capacities.
Dylesn 1TB Portable SSD
Best for: iPhone ProRes video recording
- Storage Capacity
- 1TB
- Interface
- USB 3.0
- Form Factor
- External Drive
- Max Read Speed
- Up to 1050MB/s
- Max Write Speed
- Up to 1050MB/s
- Transfer Speed
- 20Gbps
View on Amazon: Dylesn 1TB Portable SSD Affiliate link
The Dylesn 1TB portable SSD offers USB-C connectivity with advertised speeds up to 20Gbps. It features a slim aluminum design weighing 0.56 ounces. The drive supports direct ProRes video recording for iPhone 16 Pro and 15 Pro users. It is compatible with Windows, macOS, and gaming consoles. This external drive suits creators needing reliable storage for high-bitrate footage on the go.
Pros
- USB-C interface with 20Gbps transfer capability
- Slim aluminum casing weighs only 0.56 ounces
- Optimized for iPhone ProRes video recording
- Compatible with Windows, macOS, and consoles
Cons
- Model number lists 512GB capacity
- Dimensions listed are unusually small
- No warranty information provided
Good fit if
- You shoot ProRes video on iPhone
- You need a lightweight portable drive
- You use Windows or macOS systems
Skip if
- You require verified internal SSD speeds
- You need a warranty for peace of mind
- You prefer standard 2.5-inch drive sizes
Verdict: Dylesn 1TB Portable SSD is a compact option for iPhone videographers, though the listed dimensions and model capacity raise questions about accuracy.
SanDisk SSD Plus 2TB SATA III SSD
Best for: Upgrading 2.5-inch SATA bays with 2TB capacity
- Storage Capacity
- 2TB
- Interface
- SATA III 6 Gb/s
- Form Factor
- 2.5"/7mm
- Max Read Speed
- Up to 545MB/s
- Max Write Speed
- Up to 515MB/s
- Cache Type
- SLC Caching
View on Amazon: SanDisk SSD Plus 2TB SATA III SSD Affiliate link
The SanDisk SSD Plus offers 2TB of internal storage in a standard 2.5-inch form factor. It connects via SATA III 6 Gb/s, delivering sequential read speeds up to 545MB/s and write speeds up to 515MB/s. This drive uses SLC caching to handle burst writes, making it suitable for everyday tasks like gaming and photo editing. It is a reliable upgrade for desktops or laptops needing more space.
Pros
- 2TB storage capacity for large files
- Sequential read speeds up to 545MB/s
- SLC caching boosts burst write performance
- Shock and vibration resistant design
- Includes Acronis True Image software
Cons
- SATA III interface limits speed vs NVMe
- No USB-C or Thunderbolt connectivity
- Only 3-year limited warranty coverage
Good fit if
- You need 2TB of internal storage
- You are upgrading a 2.5-inch SATA bay
- You want reliable everyday performance
Skip if
- You need external portable connectivity
- You require PCIe NVMe speeds
- You are building a modern M.2 system
Verdict: SanDisk SSD Plus 2TB SATA Drive fits users upgrading older PCs with a 2.5-inch bay who need reliable, high-capacity storage without the premium cost of NVMe drives.
iStorage diskAshur2 128GB Encrypted SSD
Best for: secure portable storage of small files
- Storage Capacity
- 128GB
- Interface
- USB 3.2
- Form Factor
- Portable
- Max Read Speed
- Up to 361MB/s
- Max Write Speed
- Up to 358MB/s
- Security
- Hardware Encryption, Password Protection
View on Amazon: iStorage diskAshur2 128GB Encrypted SSD Affiliate link
The iStorage diskAshur2 is a 128GB portable SSD designed for hardware-level security. It uses AES-XTS 256-bit encryption and requires a 7-15 digit PIN to access data. You get read speeds up to 361MB/s and write speeds up to 358MB/s via USB 3.2. The drive is IP56 certified for dust and water resistance. It works without software on Windows, macOS, and Linux. This unit suits users who need physical protection for sensitive files.
Pros
- AES-XTS 256-bit hardware encryption without software
- IP56 dust and water resistance rating
- Read speeds up to 361MB/s
- Common Criteria EAL 5+ certified microprocessor
Cons
- 128GB capacity is small for large media libraries
- USB 3.2 interface is slower than 20Gbps options
- Requires manual PIN entry for every connection
Good fit if
- You need hardware encryption for compliance
- You store small but sensitive files
- You work in dusty or wet environments
Skip if
- You need high capacity for video editing
- You want plug-and-play without PIN entry
- You need maximum transfer speeds
Verdict: The iStorage diskAshur2 128GB Secure SSD fits users who prioritize security over speed and capacity. Its hardware encryption and rugged build make it ideal for sensitive data storage.
SanDisk Extreme 500GB Portable SSD
Best for: Rugged, compact portable storage needs
- Storage Capacity
- 500GB
- Interface
- USB-C, USB 3.1
- Form Factor
- Portable External
- Max Read Speed
- 550MB/s
- Dimensions
- 3.8 × 1.9 × 0.3 inches
- Weight
- 1.38 ounces
View on Amazon: SanDisk Extreme 500GB Portable SSD Affiliate link
This 500GB external SSD offers up to 550MB/s read speeds via USB-C and USB 3.1. It features a compact, pocket-sized design measuring 3.8 by 1.9 by 0.3 inches. The drive is IP55-rated for water and dust resistance and shock-resistant up to 1500G. You get a 3-year limited manufacturer warranty. It suits users needing durable, portable storage for photos and videos.
Pros
- Up to 550MB/s read speeds
- IP55 water and dust resistance
- Shock-resistant up to 1500G
- Compact 3.8 x 1.9 x 0.3 inch size
- 3-year limited manufacturer warranty
Cons
- 500GB capacity is smaller than 1TB competitors
- USB 3.1 interface is slower than 20Gbps alternatives
- No included carrying case mentioned in specs
Good fit if
- You need a rugged, water-resistant drive for travel
- You prefer a compact, pocket-sized form factor
- You want a reliable brand with a 3-year warranty
Skip if
- You require 1TB or more storage capacity
- You need maximum transfer speeds of 20Gbps
- You primarily use older USB-A ports without adapters
Verdict: SanDisk 500GB Extreme Portable SSD is a durable, compact option for users prioritizing ruggedness and portability over raw speed and capacity.
Intel 660p 1TB NVMe M.2 SSD
Best for: Internal storage upgrades for standard PCs
- Storage Capacity
- 1 TB
- Interface
- PCIe NVMe 3.0 x4
- Form Factor
- M.2 2280
- Max Read Speed
- 1800 MB/s
- Max Write Speed
- 1800 MB/s
- NAND Type
- QLC
View on Amazon: Intel 660p 1TB NVMe M.2 SSD Affiliate link
The Intel 660p is a 1TB M.2 2280 internal drive using PCIe NVMe 3.0 x4. It delivers 1800 MB/s read and write speeds with QLC 3D NAND. This drive suits users needing fast internal storage for general computing or gaming. It fits standard desktops and laptops with M.2 slots. The compact 2280 form factor makes it easy to install in tight spaces.
Pros
- 1 TB storage capacity
- PCIe NVMe 3.0 x4 interface
- 1800 MB/s sequential read speed
- 1800 MB/s sequential write speed
- M.2 2280 form factor
Cons
- QLC NAND type may have lower endurance than TLC
- Internal drive only, no external casing included
- 1800 MB/s speed lower than PCIe 4.0 drives
Good fit if
- You need a cost-effective 1TB internal upgrade
- Your motherboard supports M.2 NVMe drives
- You want fast sequential speeds for everyday tasks
Skip if
- You require an external portable SSD
- You need high endurance for heavy write workloads
- Your system only supports SATA or older interfaces
Verdict: The Intel 660p 1TB NVMe SSD offers solid 1800 MB/s speeds for users upgrading desktops or laptops. It is a practical internal storage solution for those who do not need external portability or extreme endurance.
Intel D3-S4510 240GB 2.5-Inch SATA SSD
Best for: basic internal storage upgrades
- Storage Capacity
- 240 GB
- Interface
- SATA 6Gb/s
- Form Factor
- 2.5"
- Dimensions
- 4.53 × 0.67 × 5.63 inches
- Weight
- 2.08 ounces
View on Amazon: Intel D3-S4510 240GB 2.5-Inch SATA SSD Affiliate link
This is a 240 GB internal drive using the SATA III interface. It uses a standard 2.5-inch form factor, fitting easily into most desktops and laptops. The drive uses TLC NAND flash for reliable performance. You get a compact unit that weighs just 2.08 ounces. It is a solid choice if you need a dependable internal storage upgrade rather than a portable solution.
Pros
- 240 GB storage capacity
- SATA III 6 Gb/s interface
- Standard 2.5-inch form factor
- Lightweight 2.08 ounces
Cons
- Limited 240 GB capacity
- SATA interface is slower than NVMe
- Internal drive only, not portable
Good fit if
- You need an internal drive for a desktop or laptop
- You want a reliable SATA-based upgrade
- You are on a budget for basic storage
Skip if
- You need high-speed NVMe performance
- You require a portable external drive
- You need more than 240 GB of space
Verdict: Intel D3-S4510 240GB 2.5" SATA SSD is a basic internal drive for users who prioritize compatibility and reliability over speed. It fits well in standard 2.5-inch bays for everyday computing tasks.
Specifications side by side
| Spec | SSK 1TB 20Gbps Portable SSD | Dylesn 1TB Portable SSD | SanDisk SSD Plus 2TB SATA III SSD | iStorage diskAshur2 128GB Encrypted SSD | SanDisk Extreme 500GB Portable SSD | Intel 660p 1TB NVMe M.2 SSD | Intel D3-S4510 240GB 2.5-Inch SATA SSD |
|---|---|---|---|---|---|---|---|
| Storage Capacity | 1 TB | 1TB | 2TB | 128GB | 500GB | 1 TB | 240 GB |
| Interface | USB 3.2 Gen2x2 | USB 3.0 | SATA III 6 Gb/s | USB 3.2 | USB-C, USB 3.1 | PCIe NVMe 3.0 x4 | SATA 6Gb/s |
| Form Factor | not stated | External Drive | 2.5"/7mm | Portable | Portable External | M.2 2280 | 2.5" |
| Max Read Speed | Up to 2000MB/s | Up to 1050MB/s | Up to 545MB/s | Up to 361MB/s | 550MB/s | 1800 MB/s | not stated |
| Max Write Speed | not stated | Up to 1050MB/s | Up to 515MB/s | Up to 358MB/s | not stated | 1800 MB/s | not stated |
| Cache Type | not stated | not stated | SLC Caching | not stated | not stated | not stated | not stated |
| NAND Type | not stated | not stated | not stated | not stated | not stated | QLC | not stated |
| Security | not stated | not stated | not stated | Hardware Encryption, Password Protection | not stated | not stated | not stated |
| Transfer Speed | 20Gbps | 20Gbps | not stated | not stated | not stated | not stated | not stated |
| Features | TRIM | not stated | not stated | not stated | not stated | not stated | not stated |
| Size | 1 TB | 1TB | 2TB | 128GB | 500GB | 1 TB | not stated |
| Host Interface | not stated | USB-C | not stated | not stated | USB-C | not stated | not stated |
| Dimensions | 2.93 × 1.46 × 0.42 inches | 1.1 × 0.75 × 0.2 inches | 3.95 × 2.75 × 0.27 inches | 4.72 × 3.15 × 0.59 inches | 3.8 × 1.9 × 0.3 inches | 6.5 × 4.75 × 0.75 inches | 4.53 × 0.67 × 5.63 inches |
| Weight | 2.12 ounces | 0.56 ounces | 1.15 ounces | 7.62 ounces | 1.38 ounces | 1.6 ounces | 2.08 ounces |
| Color | Black | Silver | Black | Ocean Blue | Standard Enclosure–Transfer Speed Up to 550MB/s* | black | Silver |
| Model | SD501/1TB | DYLESN-UX1-512GB | SDSSDA-2T00 | IS-DA2-256-SSD-128-BE | SDSSDE60-500G-G25 | SSDPEKNW010T8X1 | SSDSC2KB240G801 |
Readers of this guide also look at seagate portable 1tb external hard alternatives.
Frequently asked questions
Which alternative is best for iPhone ProRes video recording?
The Dylesn 1TB Portable SSD is the top choice for this task. It supports 20Gbps transfer speeds via a USB-C host interface. This high bandwidth helps manage the large file sizes generated by ProRes recording on iPhone devices. Its compact silver design makes it easy to carry alongside mobile gear.
What is the best option for upgrading a 2.5-inch SATA bay?
The SanDisk SSD Plus 2TB SATA III SSD fits this need perfectly. It uses a standard SATA III interface and comes in a 2.5-inch form factor. This allows you to replace older drives in desktops or laptops without needing new adapters. The 2TB capacity provides ample space for system files and data.
Which drive offers the best security for sensitive data?
The iStorage diskAshur2 128GB Encrypted SSD is designed for security. It features hardware encryption and password protection to keep your files safe. While the 128GB capacity is small, the rugged build and secure focus make it ideal for storing sensitive documents rather than large media libraries.
Is there a rugged portable SSD with lower capacity?
The SanDisk Extreme 500GB Portable SSD is a durable option for rugged use. It uses a USB-C interface and offers 500GB of storage. This model prioritizes physical durability and compact portability over maximum speed or capacity, making it suitable for field work where equipment might face rough handling.
Which NVMe drive is best for internal PC upgrades?
The Intel 660p 1TB NVMe M.2 SSD is a practical internal upgrade. It uses the M.2 2280 form factor and QLC NAND type. This drive delivers speeds up to 1800 MB/s, making it a solid choice for standard desktops or laptops that do not require extreme endurance or external portability.
What is a reliable basic SATA drive for internal use?
The Intel D3-S4510 240GB 2.5-Inch SATA SSD is a basic internal drive. It uses the SATA III interface and fits standard 2.5-inch bays. This model prioritizes compatibility and reliability for everyday computing tasks, though its 240GB capacity is limited compared to modern high-capacity options.






