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SSK

SSK Portable SSD 4TB External Solid State Hard Drive USB C Up to 1050MB/s

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Availability: Only 1 left in stock, order soon!
Fulfilled by Amazon
Arrives Saturday, Oct 10
Order within 7 hours and 28 minutes
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Capacity: 4 TB


Features

  • Display 4TB Variance: 4tb external hard drive may display as 3725GB on Windows but 4TB on macOS due to measurement differences. The capacity reduction from hard drive actual capacity stems from algorithmic differences, where 1GB is calculated as 1,024MB on Windows versus 1,000MB on SSDs
  • Blazing Transfer Speeds: 4TB SSD external hard drive reads up to 1050MB/s and writes up to 1000MB/s via USB 3.2 Gen2. Transfer massive files in secondsideal hard drive for video editors, gamers, and photographers needing fast access
  • USB-C + USB-A Dual Connectivity: This 4TB portable SSD includes both USB-C and USB-A cables for effortless cross-platform transfers. Easily transfer files bewteen Phone, PC, camera, gaming hostno adapters or software needed
  • 4K ProRes HDR for iPhone: Designed for creators, this 4TB external SSD supports direct 4K60Hz ProRes HDR capture with ultra-low power consumption. Perfect for mobile workflows, on-the-go recording, and high-resolution photography
  • Data Security: Equipped with S.M.A.R.T. and TRIM technology, this 4TB external solid state drive maintains consistent write speeds, safeguards your data, and extends drive longevity. Reliable for storing everything from personal documents to professional projects

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. Full 4TB Massive Storage: 4TB external hard drive may display as 3725GB on Windows but 4TB on macOS due to measurement differences. The capacity reduction from hard drive actual capacity stems from algorithmic differences, where 1GB is calculated as 1,024MB on Windows versus 1,000MB on SSDs SSD Hard Drive speed up to 1050MB/s, 9.5X faster than traditional HDD (Tested on CrystalDiskMark 7.0) File transfer speed varies on host performance, interface, protocol, usage condition, file size, number of files in the folder. Transfer many small files reduce speed Ultra Fast External SSD Drive ensures rapid transfers for RAW files, and creative projects editing. —ideal for Apple ProRes 4K HDR recording without phone storage drain. Record and store into theSSD Drive Directly Supports iPhone 15/16/17 or newer with USB-C port, not support Lightning port External SSD redefines efficiency with low power consumption—under 5W for seamless operation across various portable USB devices OTG function. SSD Drive ships in exFAT format for universal Plug and Play. Can be reformatted to other formats as needed. Please backup data before Re-formatting External SSD Thick Aluminum Case withstands drops from up to 1 meter. Can also quickly dissipates heat to ensure stable and consistent performance, delivering reliable protection for your valuable data. All SSD naturally generate heat, our metal casing effectively conduct and dissipate heat outward External solid state drive integrates S.M.A.R.T. health diagnostics and adaptive TRIM optimizing data block management—it sustains peak write speeds and extends the SSD longevity External SSD LED shows real‑time data transfer activity, helping prevent accidental disconnections and data loss Based on our analysis of returned units, over 98% of defects are caused by improper unplugging. Therefore, Never unplug the drive during data transfers, and avoid sudden power loss. Due to the inherent properties of hard drives, and in order to protect your data, please strictly follow these guidelines: How to use with Apple: How to use with Android:

Digital Storage Capacity: 4 TB


Connectivity Technology: USB


Brand: SSK


Special Feature: LED Light, Portable, SMR Technology, TRIM Support


Hard Disk Form Factor: 2.5 inches


Hard Disk Description: Solid State Drive


Compatible Devices: Laptop, Smartphone


Installation Type: External Hard Drive


Color: Grey


Hard Disk Size: 4 TB


Digital Storage Capacity: 4 TB


Connectivity Technology: USB


Additional Features: LED Light, Portable, SMR Technology, TRIM Support


Hard Disk Form Factor: 2.5 inches


Compatible Devices: Laptop, Smartphone


Specific Uses For Product: Gaming, Personal


Read Speed: 1000 megabytes_per_second


Media Speed: 1000 megabytes_per_second


Cache Memory Installed Size: 4 TB


Data Transfer Rate: 1050 megabytes_per_second


Form Factor: M2


Hardware Connectivity: USB 3.2 Gen 2, USB Type C


Hardware Platform: Mac, PC


Installation Type: External Hard Drive


Color: Grey


Enclosure Material: Metal


Brand: SSK


Model Number: SD500/4TB


Hard Disk Description: Solid State Drive


Built-In Media: USB Cable


Model Name: SD500/4TB


Manufacturer: SSK Corporation


Mfr Part Number: SD500


Warranty Description: 3 Years


Hard-Drive Size: 4 TB


Item Weight: 36.6 g


Item Dimensions L x W x Thickness: 2.5"L x 1.31"W x 0.43"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: Saturday, Oct 10

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.

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Top Amazon Reviews

    • Perfect for my automotive application
Capacity: 500GB
I bought this for my Rivian dashcam and it works perfectly. It’s nice and small and included the cables I needed for the installation. Formatting was done by the car and took seconds to complete. It’s also much less expensive than some of the other options out there and works great.
Reviewed in the United States on August 30, 2026 by TGRRAG
    • Great SSD external hard drive in a tiny package!!!
Capacity: 1TB
This SSK 1TB external hard drive has a very fast transfer rate. It was a great price also. It was easily compatible to my MAC and the storage capacity was perfect since I do use icloud for backup. I needed to backup to an external drive before upgrading to a new OS and this little hard drive did the trick in just a few minutes. It will also encrypt your data if you need it to. Great device. ... show more
Reviewed in the United States on July 3, 2026 by everlovinnana
    • Great size
Capacity: 250GB
Just the right size I was looking for. At first I was having a hard time getting it to respond but once I realize how to open the file up it was easy. The instruction are poor and hard to understand. However I love it now. This will free up my phone space and now I'm moving pictures from my phone to the drive. Not sure if it's me or the drive but the speed is just ok. For me it's a keeper. ... show more
Reviewed in the United States on August 27, 2026 by D Biv
    • Best portable hardware
Capacity: 1TB
Review Image by Rey719
Review Image by Rey719
Review Image by Rey719
Review Image by Rey719
I really wasn’t expecting this to be this small. Works really easy. Just plug and play. I’m using it to back up my photos and videos off my iPhone. The drive came with two cords. One is usb c to usb c and the other is standard usb to usb c. So it’s pretty modern to fit just about any device. The device is powered by my iPhone so you don’t need any additional power cords. Files are easily transferred from the phone to the hard or the other way very quickly. ... show more
Reviewed in the United States on August 6, 2026 by Rey719
    • Build is ok, speed is good and as advertised, overall a good product.
Capacity: 250GB
So far the speeds on this device is good, of course changing the format from exfat too NTFS because there was no Max device mostly windows 10/11 computers and it would work much faster and such while gaming, and once that was done taking of course a long time to format like 4+ 5+ Hour's? Since I didn't want to use quick formatting for some reason. And I did see a slight opening on one of the aluminum pieces on the very edges which is a slight build quality problem, but the product works just fine, speeds are just as expected and gaming seems fine on the SSD...... PS on the side that's slightly peeking open for some reason where I could see the blue light coming out of from the one of the main aluminum pieces, it still works good for heat distribution to dissipate.. Also other key notes besides the negatives and neutrals, good weight, good portability, ok formatting but it does take a long time if you do the longer formatting options, so I do recommend waiting it out if you need too... Overall I would say this is a overall good product for what it needs, like for simple and nice gaming, or general file transfers, stuff like that should be fine especially with Steam games and such. Anyways I hope this review was even at the least, slightly helpful and if not that's completely fine we all have are own opinions. Hope y'all have a good day and that's all.. PS the seems on the aluminum that meets the plastic or if most if not all the parts are plastic then I am not too sure feels like aluminum for the main big front plates and backplates of it with the outer smaller sides being plastic but regardless the seems on it is not actually that bad as I first thought and I re-checked, I see a little bit of blue light coming out not where is should but it's actually still intact decently..... ... show more
Reviewed in the United States on May 11, 2026 by Xavier Corbin
    • Super Small and Mighty 1tb drive
Capacity: 1TB
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Reviewed in the United States on August 5, 2026 by joseph rincon
    • Initial impression is positive
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Just received and so far I'm pleased with it. It is amazingly small! Just hard to imagine it is a 1TB drive in that small of a case! I am also pleased with the speed. On my Mac Studio with the SSD formatted as an APFS drive, I am getting about 800 MB/s W/R speeds (with the Blackmagic Disk Speed Test), which is pretty much the same as my several T9 SSDs. Can't speak to reliability as it is brand new, so keeping my fingers crossed on that point. ... show more
Reviewed in the United States on August 5, 2026 by J. Jefferson Walker
    • Memory device that saves you money!
Capacity: 500GB
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If you get the “ not enough storage” or “iPhone storage full “ notification whenever you go to record a video or take a picture, this is a product that you absolutely need. It is great for offloading pictures that you want to keep, but need to access right away. This is the best backup memory device I’ve seen. It is compatible with my iPhone and works extremely well. It is super easy to use and set up. The format matches the Files app that is already on my iPhone. This is a smart purchase because it eliminates the need for monthly payments for added phone storage. ... show more
Reviewed in the United States on September 3, 2026 by Dominique

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