Original WS21 BLANK Transponder Chip

The Original WS21 Blank Transponder Chip is a Texas Instruments 8A (H-chip) 128-bit AES carbon capsule used in many late-model vehicles. It is a blank chip intended for professional programming or generation, suitable for applications such as Hyundai/Kia 8A systems and Subaru H-chip systems, and it can be generated into a Toyota H transponder with compatible equipment.

• Chip ID / Family: WS21, Texas Instruments 8A (H-chip), 128-bit AES crypto.
• Form Factor: Carbon transponder capsule for installation in key shells or flip keys.
• Use Cases: Replace a locked or missing chip in an OEM/aftermarket key, or build a new transponder key from a shell.
• Programming: Blank chip—must be programmed/generated with a professional key programmer; OBD or bench procedures depend on vehicle/platform.
• Common Fitments: Late-model Hyundai/Kia platforms using 8A systems (e.g., Elantra and Seltos model years around 2020+); Subaru H-chip keys on TOY43RH platforms (select 2017–2021 applications); can be generated as Toyota H with compatible tools.
• Notes: Platform coverage varies by region and model year. Some Kia models are excluded from WS21 8A coverage; verify by VIN or immobilizer type before programming.

This WS21 blank offers a modern 128-bit security profile for high-reliability immobilizer operation once programmed to the target vehicle.