461-AAII: Dell Trusted Platform Module (TPM 2.0) Security Module for 16G
Also listed as: 02K90N, 2K90N · made by Nuvoton
The Dell 461-AAII is a Dell Trusted Platform Module (TPM 2.0) Security Module for 16G providing hardware cryptographic root-of-trust security for Dell PowerEdge R760, R660, R7615, R7625 servers.
Specifications
| Part number | 461-AAII |
|---|---|
| Brand | Dell |
| Made by | Nuvoton |
| Type | TPM modules |
| Other numbers | 02K90N, 2K90N |
| Status | current |
| Interface | Proprietary Motherboard Security Header |
| Form factor | Pluggable Hardware Security Module with Tamper Rivet |
| Generation fit | 16th Generation PowerEdge Servers |
About the 461-AAII
The Dell 461-AAII is a Dell Trusted Platform Module (TPM 2.0) Security Module for 16G designed to provide hardware-based cryptographic security for Dell PowerEdge servers. The 461-AAII stores encryption keys, platform measurements, and certificates in tamper-resistant silicon, enabling Secure Boot, BitLocker drive encryption, and hypervisor attestation.
Compatibility
The 461-AAII installs into a dedicated motherboard TPM header on Dell PowerEdge R760, R660, R7615, R7625 servers. Once bound and enabled in system BIOS, the 461-AAII establishes permanent cryptographic pairing with the host motherboard as governed by platform security standards.
How to identify a genuine unit
Genuine Dell 461-AAII TPM modules display a miniature serialized label showing DP/N 02K90N and regulatory compliance markings. In system BIOS and iDRAC System Security inventory, the 461-AAII module enumerates as TPM 2.0 with active firmware and PPI status, verifying cryptographic hardware readiness.
Buying used
Note that Dell TPM modules like 461-AAII are cryptographically paired to the host motherboard upon activation and cannot be reset or moved to another server once enabled. Pre-owned 461-AAII modules must be verified as brand-new, uninstalled spares with undamaged connection pins.
Fits these models
- Dell PowerEdge R760
- Dell PowerEdge R660
- Dell PowerEdge R7615
- Dell PowerEdge R7625
- Dell PowerEdge R860
- Dell PowerEdge R960
Equivalent part numbers
- Dell 2K90N Dell direct spare part number for 16G TPM 2.0 Module
FAQ
Why is TPM 2.0 required for modern server operating systems?
Windows Server 2022/2025 and VMware ESXi 8.0 require TPM 2.0 to support Virtualization-Based Security (VBS) and host credential guards.
Does this module support both SHA-1 and SHA-256 bank algorithms?
Yes, standard TPM 2.0 supports modern SHA-256 PCR banks for platform measurement.
Buying or selling 461-AAII?
New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.
Sources
- Dell 16G Trusted Platform Module 2.0 Technical Guide, checked 2026-10-27