Use Windows TPM Base Services (TBS) to submit a raw TPM command by creating a compatible TBS context, passing the command bytes and a result buffer to Tbsip_Submit_Command, and then checking two separate outcomes: the function’s TBS_RESULT and, if that call succeeds, the TPM response in the result buffer. TBS_SUCCESS means the Windows API call succeeded; it does not mean the TPM command succeeded.
Choose TBS or a higher-level API
TBS centralizes TPM access across applications and cooperatively schedules requests using caller priorities. It is the Windows route for sending TPM command buffers directly. For key-storage tasks such as creating or using keys, Microsoft recommends the higher-level Key Storage APIs when they meet the need. See Microsoft’s TPM Base Services overview.
Create a context for the TPM generation
Call Tbsi_Context_Create to obtain the context handle used for later submissions. The context parameters specify which TPM generation the application supports.
- TPM 2.0 only: In
TBS_CONTEXT_PARAMS2, setversiontoTPM_VERSION_20andincludeTpm20to1. - TPM 1.2 and TPM 2.0: Set
includeTpm12as well, so the context can support both generations.
Use the TBS_CONTEXT_PARAMS2 reference for the structure’s requirements. Context creation can fail—for example, because parameters are invalid, the TBS service is disabled or stopped, too many contexts are open, or no compatible TPM is available. Check the returned TBS code rather than assuming a usable handle was created; see Tbsi_Context_Create.
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- 【Quality materials and easy installation】TPM 2.0 Security Module is made of high quality material and is well made for long life.It is easy to install, lightweight and compact, and its easy integration makes it a breeze to install and operate quickly.
- 【Working environment】The TPM2.0 Security Module is compatible with GC-TPM2.0_S. Interface: LPC, TPM IC: SLB9665, Pin Connector: 12Pin.Please check compatibility before purchasing.
- 【Reliable Work】The TPM 2.0 Module is a highly reliable cryptographic processor that brings an extra layer of security to your Windows computer. With its advanced encryption technology, you can perform secure operations such as generating, storing, and restricting the use of cryptographic keys, ensuring that your system is protected from unauthorized access.
- 【High-quality replacement】high-quality professional use, the function is the same as the original model, stable performance, a good replacement of the original damaged old safety module.
- 【Model Support】Each security module is tested before it leaves the factory and is 100% perfectly works well.Therefore, Please confirm that your motherboard supports TPM2.0 technology.
Submit the command buffer
Tbsip_Submit_Command accepts a context handle, locality, priority, command buffer and byte count, plus a result buffer and its in/out size. The input command is supplied through pabCommand with its length in cbCommand. The output buffer is pabResult; initialize pcbResult to its capacity before calling.
- Choose locality and priority. Microsoft documents locality zero as the only currently supported locality. Priority can be low, normal, high, system, or max.
- Provide sufficient output capacity. On return,
pcbResultgives the result length. If the buffer is too small, it reports the required size, allowing the caller to allocate a larger buffer and retry as appropriate. - Use separate buffers or alias them. Microsoft explicitly permits the command and result buffers to be the same buffer.
The function is documented with tbs.h, Tbs.lib, and Tbs.dll. Its reference lists desktop Windows support beginning with Windows Vista and Windows Server 2008; check the current requirements for the Windows version you target. See Microsoft’s Tbsip_Submit_Command reference.
Rank #2
- 【Wide Compatibility – Gigabyte & ASUS】 Specifically designed for Gigabyte and ASUS desktop motherboards with a 20-1 pin (2x10 / GA 20-1) 2.54mm pitch LPC TPM header. Ideal for upgrading to TPM 2.0 on DDR4 systems. (Note: NOT compatible with 12-pin, 2x6, or 14-pin headers).
- 【Windows 11 Readiness】 An essential hardware upgrade to meet Windows 11 security requirements. Ensure your system stays secure and up-to-date with a dedicated hardware TPM 2.0 module without replacing your entire motherboard or CPU.
- 【Advanced Security & Encryption】 Powered by the standalone Infineon SLB9665 encryption processor. This module securely stores cryptographic keys for software like Windows BitLocker, providing a robust layer of hardware-based security for your data.
- 【Platform Limits – No Laptops】 Optimized for Desktop motherboards from the DDR4 era (X99 series and newer). Not compatible with laptops or legacy DDR3 systems. Please verify your motherboard's header layout (2x10 pins) before ordering.
- 【Easy Setup & BIOS Note】 Simple plug-and-play installation takes only minutes with no tools required. IMPORTANT: After installation, you MUST enable "Security Device Support" or "Intel PTT / AMD fTPM" in your BIOS settings for Windows to recognize the module.
Check the TBS result and TPM response separately
There are two error layers, and they mean different things:
- The function returns a TBS failure: Windows TBS could not successfully submit or process the API call. Handle the returned TBS code as an API-level failure.
- The function returns
TBS_SUCCESS: The TBS call succeeded. Inspect the response bytes as well: the TPM may have rejected the command and returned a standard TPM error in the result buffer.
Do not report a TPM operation as successful solely because Tbsip_Submit_Command returned TBS_SUCCESS. The function reference describes the result buffer and the distinction between the API result and a TPM error, but it is not a general TPM response decoder.
Rank #3
- TPM 2.0 module for Asus motherboard.
- TPM 2.0 module chip 2.0mm pitch, 2x7P, 14 pin security module
- LPC 14 Pin for AsusTPM chip is better compatible with DDR4 memory module of motherboard, built in support memory type higher than DDR3! Supported states may vary by motherboard specification.
- Note: Don't support laptops and motherboards prior to X99; Don't support DDR3 memory.
- Packing list:1x TPM 2.0 Module for ASUS
Decode bytes using the applicable TPM command definition
TBS transports the result buffer; its function signature does not define a complete byte-level response parser. The Microsoft TBS pages cited here do not specify general response-header offsets, byte order, response-tag rules, or command-specific payload layouts. Before extracting fields, identify the TPM generation and command you sent, then consult the applicable TPM specification and that command’s response definition. Do not infer a response layout from the TBS parameters alone.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Close the context
When the application is finished with the context, call Tbsip_Context_Close to close it and release its associated resources and binding handle. The function is listed in Microsoft’s Tbs.h API reference.
Quick Recap
Best Value
- Independent TPM Processor: The remote card encryption security module uses an independent TPM encryption processor, which is a daughter board connected to the main board.
- High Security: The TPM securely stores an encryption key that can be created using encryption software, without which the content on the user's PC remains encrypted and protected from unauthorized access.
- PC Architecture: TPM module system components adopts a standard PC architecture and reserves a certain amount of memory for the system, so the actual memory size will be smaller than the specified amount.
- Scope of Application: TPM modules are suitable for GIGABYTE for 11 motherboards. Some motherboards require a TPM module inserted or an update to the latest BIOS to enable the TPM option.
- Easy to Use: 12Pin remote card encryption security module is easy to use, no complicated procedures are required, and it can be used immediately after installation.
Rank #4
- TPM 2.0 module for ASROCK motherboard.
- TPM 2.0 module chip 2.0mm pitch, 2x9P, 18 pin security module for ASROCK
- LPC 18 Pin for TPM chip is better compatible with DDR4 memory module of motherboard, built in support memory type higher than DDR3! Supported states may vary by motherboard specification.
- Note: Don't support laptops and motherboards prior to X99; Don't support DDR3 memory.
- Packing list:1x TPM 2.0 Module for ASROCK
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