Quick Answer
ASUS runs several parallel naming systems — “C” models (older), “CX/CM/CR/CZ” models (current consumer and education lines), and “Chromebook Plus”/Flip variants — which makes matching a device to its AUE date trickier than with most other brands. Current ASUS Chromebook Plus and CZ-series education models get updates until 2033-2036, while older C200/C300-series models from 2015-2019 have long expired. The table below covers popular current and recent ASUS models, sourced from Google’s official Auto Update Policy list.
ASUS AUE Dates by Model (Selected)
| Model | Automatic Updates Until |
|---|---|
| Chromebook CX1 (CX1400CKA) | Jun 2031 |
| Chromebook Detachable CM3 (CM3000DVA) | Jun 2030 |
| Chromebook CM14 (CM1402C) | Jun 2033 |
| Chromebook CX34 (CX3402CBA) | Jun 2032 |
| Chromebook Flip CX5 (CX5601FBA) | Jun 2032 |
| Chromebook CX1405CTAZ | Jun 2033 |
| Chromebook CX14 (CX1405CTA) | Jun 2035 |
| Chromebook CR11 (CR1104CTA) | Jun 2035 |
| Chromebook CR12 (CR1204CTA) | Jun 2035 |
| Chromebook CZ11 (CZ1104C) | Jan 2036 |
| Chromebook CZ12 (CZ1204C) | Jan 2036 |
| Chromebook Plus CX14 (CX1405CTA) | Jun 2035 |
| Chromebook Plus CX34 (CX3402CBA) | Jun 2032 |
| Chromebook Plus CX5 (CX5403C) | Jun 2034 |
| Chromebook C204 (education) | Jun 2029 |
ASUS’s model codes look similar at a glance — “CX1400CKA” versus “CX1405CTA” versus “CX1405CTAZ” are three different hardware generations with different AUE dates — so always match the complete code printed on the bottom of the device, not just the family name (CX1, CX14, etc.).
How to Check Your Exact Model
Rather than matching your device against a printed model name, check it directly: open Settings, click About ChromeOS, then Additional details to see the precise expiration date tied to your specific unit.
Comparing ASUS to Other Brands
ASUS’s newest Chromebook Plus and CZ-series models reach 2033-2036, matching the longest update windows currently offered by Acer, HP, and Lenovo. As with those brands, the generation matters far more than the brand itself — confirm the exact code before buying.
FAQ
Why do some ASUS model codes look almost identical?
ASUS often keeps the same base name (like “CX1400”) across hardware refreshes and only changes a trailing letter or digit (CKA, CTA, CTAZ). Each suffix can mean a different processor generation and a different AUE date, so the full code matters.
My ASUS Chromebook has expired updates — can I still use it safely?
It keeps working, but stops receiving security patches. See our guide on what to do once a Chromebook is past its AUE date, including installing ChromeOS Flex as a supported alternative.
My ASUS Chromebook won’t turn on or keeps restarting — is that an AUE issue?
No, AUE only affects software updates. For those symptoms, see our ASUS Chromebook won’t turn on guide or our ASUS keeps restarting guide instead.
