Search  for anything...
SSK

SSK 1TB Portable SSD External Hard Drive Solid State Drive up to 550MB/s

  • Based on 550 reviews
Condition: New
Product info up-to-date
$145.99 Why this price?
Save $44.00 was $189.99

Buy Now, Pay Later

As low as $24.33 / mo
  • – 6-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: Only 10 left in stock, order soon!
Fulfilled by Amazon
Arrives Sunday, Oct 18
Order within 9 hours and 29 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Capacity: 1 TB


Features

  • Capacity Reminder: Display capacity of external hard drive 1TB often appears as around 931GB on Windows. MacOS typically shows full 1TB. This display capacity reduction of 7% to 10% from SSD actual capacity is from algorithms differences in which 1GB is interpreted as 1024MB on Windows and 1000MB on SSDs
  • 550MB/s: Instantly access to your files with blazing 6Gbps external ssd speed up to 550MB/s. LED Light indicates portable ssd instant activity (Actual speed depends on drive capacity, host device, OS and application)
  • Data Security: Master external solid state drives health with S.M.A.R.T. monitoring. TRIM technology ensures consistent write speeds and extends the longevity of the portable SSD
  • USB C+A : Both USB-C cable and USB-A adapter featuring rapid USB 3.2 Gen2, this USB SSD effortlessly bridges devices, enabling seamless cross-platform file transfers between computers, smartphones, tablets and Phones
  • Always Fast: No slowdowns during large file transfers. This external ssd remains steady 6Gbps by using high speed SLC caching (25%of the current available capacity is allocated for high speed cache)

Description

Founded in 2001, SSK is a professional IT peripherals brand with 25 years of experience, focusing on quality, innovation and creativity. We design, develop and manufacture. With ISO9001 certification, we provide efficient connectivity solutions to simplify digital life and enable seamless connection. Each SSK product ensures premium quality, steady performance and sound reliability, bringing trusted storage peripherals to global users worldwide. Note: Only newer iPhones with USB-C are supported, outdated Lightning models do not qualify. Why the Full Capacity is Not 1TB For a New Drive? Display capacity of 1TB SSD often appears as around 931GB on Windows. MacOS typically shows full 1TB. This display capacity reduction is from algorithms differences in which 1GB is interpreted as 1024MB on Windows and 1000MB on SSDs Why I can't Reach 500MB/s The Crystaldiskmark testing speed for 6Gbps is expected to reach 500+MB/s. You can use CDM testing tools to verify this. In daily use, actual transfer speed depends on factors such as interface, protocols, cables, computer performance and files Why Runs Hot When Using? Heat generation is a natural occurrence in high-performance SSDs during intensive read/write tasks. This phenomenon is exacerbated during warmer seasons, much like how smartphones tend to heat up more in summer due to higher ambient temperatures. Data Safety Reminder To prevent data loss, please perform safe eject operation on your computer before unplugging the SSD and Wait until you hear the prompt before removing the device. Do not unplug the SSD during a file transfer task. Unplug it when transfer finishes. Why are Lightning port iPhone models not supported? Lightning ports are not supported due to insufficient power output. The port's limited capability can only support basic flash drives and is below the requirement for a high-performance external solid-state drive (SSD) 550MB/s PSSD 1050MB/s PSSD 2000MB/s PSSD 1000MB/s PSSD 2000MB/s PSSD 2000MB/s PSSD

Digital Storage Capacity: 1 TB


Hard Disk Interface: Serial ATA-600


Connectivity Technology: USB3.2 GEN2 6Gbps


Brand: SSK


Special Feature: LED Light, OTG Funcrion, Portable, S.M.A.R.T., TRIM Support


Hard Disk Form Factor: 2.5 inches


Hard Disk Description: Solid State Drive


Compatible Devices: Camera, Desktop, Laptop, Smartphone, Tablet


Installation Type: External Hard Drive


Color: Space Gray


Digital Storage Capacity: 1 TB


Hard Disk Interface: Serial ATA-600


Connectivity Technology: USB3.2 GEN2 6Gbps


Additional Features: LED Light, OTG Funcrion, Portable, S.M.A.R.T., TRIM Support


Hard Disk Form Factor: 2.5 inches


Compatible Devices: Camera, Desktop, Laptop, Smartphone, Tablet


Specific Uses For Product: Business, Multimedia, Personal


Read Speed: 550 megabits_per_second


Media Speed: 550 megabytes_per_second


Cache Memory Installed Size: 1 TB


Data Transfer Rate: 550 megabits_per_second


Form Factor: 2.5-inch


Hardware Connectivity: SATA 6.0 Gb/s


Hardware Platform: Linux, Mac, PC


Installation Type: External Hard Drive


Color: Space Gray


Enclosure Material: Aluminum


Brand: SSK


Model Number: SD450


Hard Disk Description: Solid State Drive


Built-In Media: 1TB External SSD, USB-A adapter, USB3.2GEN2 CtoC Cable


Model Name: SD450


Manufacturer: SSK Corporation


Hard-Drive Size: 1 TB


Item Weight: 43 g


Item Dimensions L x W x Thickness: 2.5"L x 1.3"W x 0.4"Th


Number of Items: 1


Unit Count: 1 Count


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Oct 18

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • SSK brand -- SSD drive
Capacity: 1 TB
UPDATE - 10-6-2025: Super impressed with this external -- copies 50GB from another external -- the 1TB SSK drive connected to the C port, while the 500GB NVme connected to USB 3.0, the transfer of the 50 GB folder took just under 5 minutes. That may not be fast for some but for me and my past experience with transferring large file, this is fast. Figuring this speed in real time use, It should take approximately 50 minutes to transfer 500GB -- 10-03-2025 first post Loving this little guy -- fast enough, and by that I mean it is acceptable --- not slow, but not a rocket either. Anyone who had dealt with the over blown claims and actual use on you pc. At first blush I have to say, I love this 1 TB, actual -- 953GB -- as we all know, all of the drives, hard or flash, over rate the storage space you think you get to use. There always seems to be around 100 mb used on the drive that you cannot use. Kinda like car manufactures selling cars they say will get a certain mpg, a figure you, as owner, never seem to get. Anyway, this is a sweet little SSD drive -- SSK brand, has a pretty good reputation, from what I have seen on internet reviews. The price is outstanding. Being an SSD drive is a couple of steps above a standard Flash drive. I have a 500GB NVME drive I took out of a laptop and put in an enclosure, making it and external drive. It runs hot, makes for a good hand warming during cold times, but not so much in the summer. This SSK, almost 1TB, seems to run much cooler, and physically is less than half the size. The one thing I do not like is that you have to use a cable -- well, you don't have to, but this is what it comes with, a 10" cable to connect to pc. I have order something much shorter and a direct connect so no dangling wire. So far so good. I have tried it on a couple of different laptops and it works flawless. I might mention that the packaging is triple A, very nice high end-- too bad to, as it will go to the trash -- sad -- but the first sign of quality, both in and out of the box. This was truly a plug and use, and it seems to run cool -- it gets warm, but so far not HOT, unlike the NVME drive. Love it. I will repost if anything goes sideways. Time will tell. ... show more
Reviewed in the United States on October 5, 2025 by Dan Baxley
    • Compact convenient data storage
Capacity: 256 GB
Quick, easy setup. Haven't really had much time to fully use it since purchasing it. Bought it for portability. Also like it's compact, convenient size for easy carrying. Data transfer appears fast. Price was very agreeable!
Reviewed in the United States on August 2, 2026 by ROBERT GREENE
    • Works fine if you need a SSD for 24 hours!
Capacity: 512 GB
SSD stopped being registered in my computer, completely unable to be detected beyond a usb device. Couldn't format it, reinstalling drivers didn't help, can't even access the data on it anymore. While I understand ssds die after some time, I got this drive yesterday as of writing this review. I will be returning this asap, and while I am unable to uninstall the data currently on there, it probably doesn't matter since you can't even access the 512 gb anymore. Which is the worst part! It was working fine just before too! I was excited to have a new storage device that would help supplement my needs in college. Unfortunately I found the SSK Portable External SSD to be unreliable and quick to break. Before it broke, it was fast, easy to connect, as advertised... but the fact that it broke so so so so so quickly completely voids any reason to buy this item. It could have been great, especially for the price, but it just didn't hold up to anything it wanted to deliver. ... show more
Reviewed in the United States on September 2, 2026 by Sunny
    • Transfer speed is great, works with computers and tablets seamlessly.
Capacity: 1 TB
The 1TB Portable SSD External Hard Drive is a great addition to my digital devices. I have downloaded videos and music from various sources and transferred them from my laptop to the 1TB Portable SSD External Hard Drive. Transfer speeds are great. The USB-C cable and USB-A adapter makes it easy to attach to the computer and I have attached it to several of my Samsung tablets and watched videos I have downloaded as well as music. I works great with the tablets. Caution, you have to "unmount" the hard drive from the tablet (or computer) when finished. The 1 TB capacity shows hardly a dent in capacity with everything I have transferred onto it. ... show more
Reviewed in the United States on September 11, 2026 by T. C. Reynolds
    • Exactly what you would expect (a good thing)
Capacity: 256 GB
Giving this a star rating is difficult because for me, it’s more a yes/no question as to whether this SSD is up to task. My answer would be yes and the only reason I give it 4 out of 5 stars is only because 5 should be reserved for something that really impresses you. I use this SSD with my MacBook for extra storage. When it’s connected, there’s no lag when navigating or opening my files. The SSD is a convenient size and there’s nothing technical at all about using it. Over extended periods of time, the drive does get warm to the touch. Never enough to worry me or present any problems. You could put it in your pocket if you wanted, it’s small so you can take it anywhere conveniently. ... show more
Reviewed in the United States on August 28, 2026 by Jonathan Werthmuller
    • just what I needed, an external SSD to run a Linux OS separately from Windows OS, already on my PC
Capacity: 256 GB
I looked for a moderate capacity SSD, to run a Linux Mint OS, without possible harm to my existing Win 10 OS on my PC (never tried this before). I researched and found that the SSK 256GB SSD External Hard Drive had better features at a comparable price to similar SSD's: Built to Last • TRIM technology — Maintains write speeds and extends the drive's longevity over time • S.M.A.R.T. monitoring — Tracks the drive's health so you know if there are any issues • Aluminum enclosure with heat dissipation — Prevents damage from overheating • Solid-state design — No moving parts like traditional hard drives, so less wear and tear Works great, get one (or more...I'm going to try other Linux Distros on other SSK's) ... show more
Reviewed in the United States on July 24, 2026 by n.tex.shopper
    • So far it is just perfect.
Capacity: 256 GB
So far it is just perfect. The size is compact which makes me happy. It is very fast for all my backup and recording needs. It does heat up if you leave it plugged in when not using it so that may be an issue for some people.
Reviewed in the United States on July 7, 2026 by TBar2
    • Misleading “iPhone-Supported” Claim, Only Works After a Mess of Adapters and less GBs
Capacity: 128 GB
Review Image by Let's Be Honest! REVIEWS
Review Image by Let's Be Honest! REVIEWS
I bought this specifically because the listing said it was supported for iPhones and had an ultra-low 5W power draw so it wouldn’t need any external power. That was the whole selling point for me. But the moment I plugged it into my iPhone, I got the dreaded popup: “This accessory requires too much power.” So right away, the description was clearly wrong. Nothing “ultra low power” about it. To even get this little device to function, I had to pull out my Apple camera adapter—the one with both a USB-A port and a charging port—to supply external power. Suddenly I had a chain of cables and adapters hanging off my phone just to make something work that was advertised as plug-and-play for iPhone. Definitely not what I expected, and definitely not something most buyers would want to deal with. Out of frustration, I ordered an Orico adapter to see if there was ANY way to simplify all this. And honestly, the Orico changed the entire game. I plugged it in, and it worked instantly—no extra cords, no weird power issues, nothing. The only downside with the Orico is that I have to take my phone case off for it to fit, but that’s a small price to pay compared to the headache I went through. That adapter will absolutely be getting a glowing review. As for this product: 📌 Does it work? Yes—but only if you buy extra adapters and basically build a small charging station out of your phone. 📌 Does it work as described? Absolutely not. 📌 Is it worth it? Only if you’re prepared for a fight. I’m giving it 2 stars because it technically works in the end, but the misleading description and the amount of trouble (and extra money) I had to spend to get it working is extremely disappointing. If you’re an iPhone user, be prepared for a lot more hassle than the listing suggests. The first picture is the mix and mess I had to go through to get it to work. Which also I had to be close to an outlet to plug the phone charging cord coming out of the adapter out it wouldn’t work. If I was at an airport or just sitting on the couch it would be So inconvenient to hook this all up but then HAVE to be near an outlet! So it’s not portable at all unless you buy the Orico adapter out one like it. The build quality does feel good like it’s built well but that’s what I expect from SSK they are a reliable brand. So even though they can be a bit more expensive it’s worth it because it’s usually a brand you can count on. The storage capacity says 128 gb but when I hooked it up it says only 119 free. That’s brand new out of the package nothing stored on it yet. Not sure what that’s about. The noise level is fine. I’m not worried about the noise just so frustrated I had to go through all this and buy adapters just to get this to work when the description says for iPhones. They even hype it up saying ultra low draw at 5w for using with iPhone. Super disappointed. I could have paid to get the extra GB for the price I paid for the adapter. Which I needed the 256 GB or above but the 128 G was in my price range but now that I bought the adapter I could have gotten the 256 G or the 512 G. So just know you’ll need to buy an adapter if you want to use it with your iPhone. I really want to give it a 1 star! But with the adapter it works. Also, why does it say I only have 119 gb on it brand new when it’s a 128 GB? Actually I’m sorry I have to change it to a one star it’s just misleading I didn’t get what I ordered because the description was misleading and I bought a 128 gb but only got 119. ... show more
Reviewed in the United States on November 23, 2025 by Let's Be Honest! REVIEWS

Can't find a product?

Find it on Amazon first, then paste the link below.
As low as $24.33/mo