Citadel C Series Advanced Secure M.2 SED

Simple, easy-to-use pre-boot authentication (PBA) and protection from ransomware, physical, and other cyber attacks

M.2 NVMe - FIPS 140-2

Request a quote for DIGISTOR Citadel C Series Advanced NVMe M.2 256GB FIPS 140-2 Certifed SSD (DIG-M2N2C22566):

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    • PBA feature shipping in Q4 2022
    • TAA Compliant
    • FIPS 140-2 certified: The internal Flash build has been Independently certified by one of 13 NIST specified laboratories examining the cryptographic modules. Certified by NIST’s Cryptographic Module Validation Program (CMVP). For more information, refer to the NIST site.
    • Secure Firmware: Solid secure firmware features secure digital signatures and boot-time attestation which help to protect storage devices against low-level attacks.
    • Hardware level AES 256-bit encryption with TCG Opal SSC support: the encryption/decryption is performed on device, independent from the host, reducing CPU load.
    • Instant Erase: The ability to complete sanitization of all data on the SSD in under 2 seconds, simplifying device retirement or redeployment.
    • Conformal coating as tamper evidence on board for physical security.
Citadel C Series Select (FIPS + CC versions) Citadel C Series Advanced (FIPS + CC versions)
✓ Pre-boot authentication keeps intruders out  ✓ Pre-boot authentication keeps intruders out
✓ Zero Trust architecture ✓ Zero Trust architecture
✓ Additional authentication for file access ✓ Additional authentication for file access
✓ FIPS 140-2 L2 + Common Criteria (CC) versions available: NIST certificate #4294. Listed on the NIAP Products in Evaluation List. ✓ FIPS 140-2 L2 + Common Criteria (CC) versions available: NIST certificate #4294. Listed on the NIAP Products in Evaluation List.
  ✓ Verified device erasure
  ✓ Secure data access logs
  ✓ Automated Threat Response
  ✓ Address critical requirements for data governance and privacy programs

Citadel C Series Secure SSDs, powered by Cigent, integrate cybersecurity features that make zero trust security easy and cost-effective

  • Hides encrypted files from cyber or physical attacks
  • Optional AI threat detection

This Citadel C Series SSD protects sensitive Data at Rest (DAR) from ransomware and other cyber attacks, as well as physical attacks. Citadel C Series SSDs add easy-to-implement file-level encryption as well as the ability to choose whether files are always locked or dynamically locked based on AI threat detection. Locked files are only available to authenticated users. With Cigent software, multiple authentication methods are supported. These options include Windows Hello (Facial Recognition, Fingerprint, PIN), Google Authenticator, and third-party authentication methods such as Cisco Duo.

This Citadel C Series SSD includes the security features of the standard version of the SSD as described below.

Secure SED FIPS 140-2 L2 2.5-inch SATA SED drives are self-encrypting drives securing all critical data using strong AES 256-bit encryption. FIPS 140-2 Level 2 hardware encryption ensures that the firmware integrity, encryption technology and physical security of the SED all meet the requirements set forth by the Federal Information Processing Standard by the National Institute of Standards & Technology (NIST).

Now, all DIGISTOR FIPS-certified SSDs are Common Criteria Certified (NIST Certification #4294) and NIAP-listed.


Documentation and Downloads

User Manual for C Series SSDs
Jun 9, 2022 - 1.86 MB

Technical Specifications

Product name DIGISTOR Citadel C Series Advanced NVMe M.2 256GB FIPS 140-2 Certifed SSD (DIG-M2N2C22566)
Form Factor M.2 2280
MTBF More than 1,500,000 hours
Advanced Flash Management Static and Dynamic Wear Leveling; Bad Block Management; TRIM; SMART
Performance Read: up to 3,200MB/s; Write: up to 1,300MB/s
Power Consumption Active mode: ≤ 3,735mW; Idle mode : ≤ 525mW
PCIe Interface PCIe 3x4; NVMe NVMe 1.3; PCI Express Base 3.1
Operating system compatibility PBA: Windows, Linux, SecureView, Forcepoint
Advanced features: Windows

FIPS 140-2 Level 2; TCG Opal 2.0 hardware level AES 256-bit encryption

FIPS Certified Hardware based encryption design
FIPS Description Validated to FIPS 140-2 L2 (certificate number 3926)
Ambient temperature range Operation: 0°C ~ 70°C; Storage: -40°C ~ 85°C
Compliancy UL, RoHS
Technical Support Your investment in DIGISTOR products is backed up by our free technical support for the lifetime of the product. If you need to contact us for any reason, visit

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