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SSK

SSK Portable SSD 4TB External Solid State Drives, up to 1050MB/s USB C SSD External Hard Drive USB 3.2 Gen2 for iPhone 15/16/17Pro, Windows, Mac, Android Phones and Tablets

  • Based on 11 reviews
Condition: New
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$419.99 Why this price?

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Availability: Only 10 left in stock, order soon!
Fulfilled by Amazon

Arrives Monday, Jun 22
Order within 9 hours and 27 minutes
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Capacity: 4TB


Features

  • Capacity Reminder: 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
  • 1050 MB/s Speed: Instantly access to your files with blazing-fast 10Gbps external SSD read up to 1050MB/s and write up to 1000MB/s. LED Light indicates USB SSD instant activity
  • Data Security: Master solid state drives health with S.M.A.R.T. monitoring. TRIM technology ensures consistent write speeds and extends the lifespan of the portable SSD
  • USB-C & USB-A Cable: Both USB-C and USB-A cables 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. When transferring files smaller than 250GB, this external ssd remains steady 10Gbps with SLC caching (25%of the current available capacity is allocated for high speed cache)

Digital Storage Capacity: 4 TB


Hard Disk Interface: PCIE x 4


Connectivity Technology: USB 3.2 GEN2, USB-C/USB-A


Brand: SSK


Special Feature: 1050 MB/s, LED Light, Portable, SMR Technology, TRIM Support


Hard Disk Description: Solid State Drive


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


Installation Type: External Hard Drive


Color: Grey


Hard Disk Size: 4 TB


Digital Storage Capacity: 4 TB


Hard Disk Interface: PCIE x 4


Connectivity Technology: USB 3.2 GEN2, USB-C/USB-A


Additional Features: 1050 MB/s, LED Light, Portable, SMR Technology, TRIM Support


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


Specific Uses For Product: Business, Multimedia, Personal


Read Speed: 1050 Megabytes Per Second


Media Speed: 1000 Megabytes Per Second


Cache Memory Installed Size: 4


Data Transfer Rate: 1050 Megabytes Per Second


Form Factor: Portable


Hardware Connectivity: USB 3.2 Gen 2


Hardware Platform: Linux, Mac, PC


Installation Type: External Hard Drive


Color: Grey


Enclosure Material: Aluminum


Brand: SSK


Model Number: SD500


Hard Disk Description: Solid State Drive


Built-In Media: 4TB External SSD Drive, USB-A TO USB-C Cable (10Gbps), USB-C TO USB-C Cable (10Gbps)


Model Name: SD500/4TB


Manufacturer: SSK corporation


Mfr Part Number: SD500


Warranty Description: 3 Years


Hard-Drive Size: 4 TB


Item Weight: 36.6 Grams


Item Dimensions L x W x Thickness: 2.6"L x 1.5"W x 0.5"Th


Number of Items: 1


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Jun 22

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
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Blazing-fast 4TB SSD at an unbeatable promo price – highly recommend!
This SSK 4TB SSD has been a fantastic purchase. The drive is compact, fast, and works flawlessly across all my devices — Mac, Windows, and even mobile. Transfer speeds are consistently strong, and the build quality feels solid. The seller, SSK Direct, handled everything professionally. Shipping was quick, the packaging was clean, and the product arrived in perfect condition. It’s clear they care about quality and customer experience. I’m very happy with the drive and will definitely purchase from SSK Direct again. Highly recommended. ... show more
Reviewed in the United States on December 8, 2025 by Eric Roussel

  • Run away!
RUN - DON’T WALK!! Away from these. I had ‘2’ and they both failed either a few weeks of each other! No customer support, no replacements! RUN! Amazon MAKES you give a star!!!!!!
Reviewed in the United States on December 27, 2025 by AR3

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