Product Comparison: IronKey S1000 vs IronKey D300

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General Specifications
About the Product
Kingston’s IronKey™ S1000 meets the strictest standards to make it the ultimate security drive. Safeguard 100 percent of confidential data with 256-bit AES hardware-based encryption, in XTS mode.
Kingston’s IronKey™ D300 USB Flash drive features an advanced level of security that builds on the features that made IronKey well-respected, to safeguard sensitive information. It’s FIPS 140-2 Level 3 certified, with 256-bit AES hardware-based encryption in XTS mode.
Size & Weight
0.35 in.
0.47 in.
3.24 in.
3.06 in.
0.83 in.
0.87 in.
1.12 oz.
1.44 oz.
What customers say about "Size & Weight"
IronKey S1000 4GB Encrypted Flash Drive
  • It is small enough to putbonba keychain.
  • The case is steel. Good small size.
  • I have 4 of these and they are amazing. Small and good fit my pocket.
  • Iron Key is now owned by Kensington. Exelent product with nice size.
  • It works fine, small size, but very heavy.
IronKey D300 4GB Managed USB 3.0 Flash Drive
  • This relatively small drive is a good proof of concept.
  • The IronKey D300 is one tough stick. Good size.
  • The device is robust and solidly made. Small and good weight.
  • It is heavy and well built. I like it!
  • It feels more solidify built product and is easy to operate with good size.
4 GB
4 GB
USB Version
Write Speed
80 MB/s
12 MB/s
Read Speed
180 MB/s
80 MB/s
XTS-AES 256-bit, FIPS 140-2 Level 3
XTS-AES 256-bit, FIPS 140-2 Level 3
Anodized Aluminum rugged secure casing, Enhanced hardware-based security, Centrally manage drive access
Advanced level of security, Rugged and secure casing, Customizable, Available in a Managed model, Fast data transfers
What customers say about "Features"
IronKey S1000 4GB Encrypted Flash Drive
  • It's still military encryption but no more secure sessions. That's the deal breaker for me.
  • The gold standard for secure data transport. This is my fourth.
  • Secure. Ironkeys are great protecting against several USB attacks.
  • Works great, easy to set up, meets required security standards.
  • Great for storing sensitive documents. I also installed a portable password manager (little paranoid about online password managers).
IronKey D300 4GB Managed USB 3.0 Flash Drive
  • It's password encoded , that is easily set and works on my windows and works Mac.
  • If you need a really secure, flexible and reliable portable way to transfer files this is ideal.
  • Data transfer speed is very impressive.
  • This drive has very high security standards and does not leave any password history on the computer you are using the drive on.
  • I simply plugged it into my Windows 10 desktop, the installation program ran, asked for a password with hints on how to make a secure password.
Warranty / Certifications
Manufacturer Warranty
5 year(s)
5 year(s)
Other Information

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