SSK External Hard Drive 1TB up to 550MB/s Portable SSD with USB C+A Cable
Bottom line: The SSK External Hard Drive 1TB up to 550MB/s Portable SSD: Up to 550MB/s read and 500MB/s write, about 10x a USB 2.0 flash drive; main trade-off: SATA-class 550MB/s, well short of the 10Gbps USB 3.2 Gen2 interface ceiling.
As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →
Pros & Cons
Pros
- ✓ Up to 550MB/s read and 500MB/s write, about 10x a USB 2.0 flash drive
- ✓ 2-in-1 USB-C/USB-A cable connects phones, tablets, and laptops without adapters
- ✓ Just 27g and 2.66 x 2.65 x 0.39 in, small enough for a pocket
- ✓ S.M.A.R.T. health monitoring plus TRIM to help sustain write speeds
- ✓ LED activity light blinks during transfers to prevent premature unplugging
Cons
- ✗ SATA-class 550MB/s, well short of the 10Gbps USB 3.2 Gen2 interface ceiling
- ✗ No Lightning support, so Lightning-port iPhones and iPads cannot connect
- ✗ No warranty length or TBW endurance rating stated in the product details
- ✗ Android phone use requires OTG support, which not every device enables
Manufacturer description
The SSK 1TB Portable SSD is a pocket-sized external solid state drive for moving photos, videos, and large files between your phone, tablet, and computer. It reads at up to 550MB/s and writes at up to 500MB/s over USB 3.2 Gen2. SSK rates that at about 10 times the speed of a USB 2.0 flash drive, so large video folders transfer in minutes rather than hours. It comes with a 2-in-1 cable that has both USB-C and USB-A plugs. You can connect it to a USB-C iPhone 15, 16, or 17, an OTG-enabled Android phone, a MacBook, a Windows laptop, or an Xbox without buying an adapter. It works as soon as you…
SpecPicks Verdict
SpecPicks scored SSK External Hard Drive 1TB up to 550MB/s Portable SSD using a rating × review-volume × price-fit model applied to published specs and reviews across the external storage category. SSK's external storage lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for external storage of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Frequently Asked Questions
Does the SSK 1TB portable SSD work with iPhone 15, 16, and 17?
Yes. SSK lists compatibility with USB-C iPhones, including the iPhone 15, and the included cable has a USB-C plug. It does not work with Lightning-port iPhones or iPads.
How fast is the SSK 1TB external SSD?
SSK rates it at up to 550MB/s read and 500MB/s write over USB 3.2 Gen2, about 10 times faster than a typical USB 2.0 flash drive. Real speeds depend on the host port and file sizes.
Can I use this SSD with an Xbox or a Mac?
Yes. The listing names Xbox, MacBook, Windows, Linux, Android, and iPadOS as supported. It works without software, though you may need to reformat it for your console or operating system.
Does it come with both USB-C and USB-A cables?
It ships with a single 2-in-1 cable that has both USB-C and USB-A connectors, so you can plug into newer USB-C devices and older USB-A computers without an adapter.
Key Features
- External SSD Drive with 2 in 1 USB C Cable: Equipped with 2 in 1 USB-C and USB-A Cable ,SSK USB SSD solid state drive allows you transfer data between smartphone/tablet and computer conveniently. Instantly release space or quickly move pictures or movies on your OTG enabled Android Type C phone, tablet, Windows computer,smart TV and more
- High Speed Transfer: Portable SSD drive up to 550mb/s read speed and 500mb/s write speed, which is 10 times faster than traditional USB 2.0 drive and memory stick.Let you move high-resolution photos, videos and large-capacity files fast. Master SSD external drive health with S.M.A.R.T. monitoring. TRIM technology ensures consistent write speeds and extends the longevity of the portable hard drive
- Plug and Play: SSK ssd external hard drive supports plug and play, without any software installation.USB solid state external hard drive can expand the capacity of phones and computer which help you get enough capacity.It is convenient for everyone to use the mobile phone to directly read the SSD thumb drive for file sharing,data transmission, and video playback when working or studying
- Portable&Light weight: You can take this usb ssd external drive with you wherever you go which make your life easier.SSK external solid state drives weighs only 27g and measures 2.66*2.65*0.39 inches. Advanced business portable USB SSD drive can record your life and work at any time
- SSD External With LED Indicator: The LED indicator blinks during data transmission to monitor the hard disk status. This simple and effective feature ensures that you don't unplug your external solid state hard drive prematurely during file transfers, avoiding data loss
- Universal Compatibility: High speed external memory storage compatible with computer equipment, smart phones, iPhone 15, iPad, xBOX, Laptops, Macbook and more.Portable hard drive works with most systems such as Windows、macOS、Linux、Android、iPadOS/Android(Incompatible with lightning port)
Full Specifications
| Brand | SSK |
|---|---|
| Color | Black |
| Weight | 27g |
| Model Name | SD451/1TB |
| Read Speed | 550 megabytes_per_second |
| Unit Count | 1 Count |
| Form Factor | 2.5-inch |
| Media Speed | 500 MB/s |
| Connectivity | USB-C |
| Model Number | SD451 |
| Compatibility | Xbox, Android, iOS, Mac, Linux |
| Built-In Media | 2 in 1 USB C Cable |
| Hard Disk Size | 1024 GB |
| Hard-Drive Size | 1024 GB |
| Mfr Part Number | SD451 |
| Number of Items | 1 |
| Special Feature | Portable |
| Installation Type | External Hard Drive |
| Compatible Devices | Desktop, Laptop, Smartphone, Tablet |
| Data Transfer Rate | 550 megabits_per_second |
| Full listing title | SSK External Hard Drive 1TB up to 550MB/s Portable SSD with USB C+A Cable | SMART & TRIM,Support OTG, USB 3.2 GEN2 External Solid State Drives for iPhone 15/16/17/Android/Mac/Xbox |
Ready to buy?
SSK External Hard Drive 1TB up to 550MB/s Portable SSD with USB C+A Cable | SMART & TRIM,Support OTG, USB 3.2 GEN2 External Solid State Drives for iPhone 15/16/17/Android/Mac/Xbox is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
Related External Storage
More guides & deep dives from the SpecPicks archive
Browse all articles & guides →- Best Retro Handhelds in 2026 — From $35 to $500
- Emulation Hardware in 2026: FPGA, Software, and Cart-Reader Ecosystems
- RTX 4070 Super vs RX 7800 XT — Which to Buy in 2026
- How to Build a Windows 98 Retro PC in 2026
- Best 1440p Gaming GPUs in 2026
- The Complete Voodoo5 5500 AGP Driver Guide (2026 Edition)
- Best Budget Gaming PC Build 2026 — ~$1,000 ($800 on Sale)
More reviews from the SpecPicks archive
Browse all reviews →- Best Used Ryzen CPU for Budget AM4 Gaming Upgrades in 2026
- Best Parts for a Budget Ryzen + RTX 3060 Gaming PC Build in 2026
- Can Local LLMs Actually Do Anything Useful?
- KOORUI 4K QD-Mini LED vs Samsung Odyssey 4K: Which 27-Inch Wins?
- Best Streaming Setup for Sim Racing in 2026: Cam, Mic, Light
- What Hardware Runs a Gemini-Class Model Locally in 2026?
- Samsung Winds Down Chip Production Six Days Before Strike: What Memory Buyers Should Do Right Now
- CompactFlash as a Win98 Boot Drive: Sizes, Limits, Gotchas
- Best GPU for Local Stable Diffusion Under $400: Why the RTX 3060 12GB Still Wins
- NVFP4 on RTX 50-Series: What llama.cpp's Native FP4 Support Means for Local Inference
- How to run DeepSeek-R1 32B on Apple M3 Ultra
- Best PC Cooling Fans for High-Airflow Gaming PCs in 2026
- LLM-Driven Driver Install on Windows 98, 2000, and XP: Vision-LLM Walkthroughs from a 4-PC Retro Fleet
- Best Ryzen CPU for Gaming in 2026
- Perplexity's Local-or-Cloud Router: What Hardware Runs the Local Half
- Best NVIDIA RTX 3060 Graphics Cards in 2026: 5 AIB Picks Compared
- Best Gaming Monitor for Console + PC in 2026
- Handheld Gaming PCs With a Keyboard: 2025 Guide
- gpt-oss on a 12GB GPU: 2026 Community Consensus (RTX 3060)
- Best Raspberry Pi 5 Alternatives in 2025
- Reviving the LAN Party in 2026: Arcade Sticks, Classic Consoles, and Local Multiplayer
- Best Local LLM Parts to Buy Before the 2026 Memory Spike
- Can a 12GB RTX 3060 Run Gemma 4 31B? Quantization & Tok/s Reality Check
- GLM-5.2: Probably the Most Powerful Text-Only Open-Weights LLM
Earliest SpecPicks reviews
Browse full archive →- Best GPU for Llama 3.1 8B (2026)
- Best GPU for Qwen 3 14B (2026)
- Best GPU for Qwen 3 32B (2026)
- Best GPU for Llama 3.1 70B (2026)
- Best GPU for DeepSeek-R1 32B (2026)
- Best GPU for Llama 3.1 405B (2026)
- How to run Llama 3.1 8B on NVIDIA GeForce RTX 5090
- How to run Qwen 3 14B on NVIDIA GeForce RTX 5090
- How to run Qwen 3 32B on NVIDIA GeForce RTX 5090
- How to run Llama 3.1 70B on NVIDIA GeForce RTX 5090
- How to run DeepSeek-R1 32B on NVIDIA GeForce RTX 5090
- How to run Llama 3.1 8B on NVIDIA GeForce RTX 4090