Manufacturer carbon reports
Dynabook Tecra A40-J carbon footprint: source and scope
Dynabook reports 190 kg CO₂e for the Tecra A40-J i7/16GB: 97 kg manufacturing and 57 kg use in a five-year US scenario with 21.3 kWh per year.
Manufacturer-reported lifecycle footprint
190 kg CO₂e
Intel Core i7-1185G7, 16GB RAM, 14-inch display, 1.8 kg device. Storage is not specified in the report.
- Reported configuration
- Intel Core i7-1185G7, 16GB RAM, 14-inch display, 1.8 kg device. Storage is not specified in the report.
- System boundary
- Manufacturer's original lifecycle per unit, including components and packaging, distribution from China to the USA, five years of use and end-of-life treatment.
- Use scenario / region
- Assembly in China; distribution, use and end-of-life scenario in the USA.
- Use period in the report
- Five years in the manufacturer's original use scenario. This is not a prediction of the unit's remaining second life.
Lifecycle phases as reported
- Production
- 97 kg CO₂e
- Transport
- 35 kg CO₂e
- Use
- 57 kg CO₂e
- End of life
- 1 kg CO₂e
Values retain the source’s units and rounding. A “less than” value is not zero; percentages are not converted into apparently exact kilograms.
Uncertainty and limitations
The manufacturer identifies usage, disposal, time, technology and geography as uncertainty sources. No numerical uncertainty interval is provided.
Before using this result for refurbishment or ITAD
- Match the published processor and memory; the report does not cover every SKU with the same family name.
- Use local electricity and an evidenced remaining service period for a European second life. Keep the original source scenario separate from that calculation.
Original source and review
Tecra A40-J Product Carbon Footprint Report ↗
- Publisher
- Dynabook
- Pages checked
- 1, 2
- Source publication date
- December 8, 2021
- Source reviewed
- September 21, 2026
- Page updated
- September 21, 2026
SHA-256 of the reviewed source
65198b7eea92a74d2faeaa29db1674d168644d51e8d8aa6fbc73936f40c5e364
Other reviewed models in this category
Apple MacBook Air M1 (2020), 256GB
Apple reports 161 kg CO₂e for the MacBook Air M1 256GB reference lifecycle. Review the 76% production share and configuration limits before modelling a second life.
MacBook Air (M1, 2020), 13-inch, Apple M1 chip, 256GB storage; US configuration.
Inspect reportDynabook Tecra A50-J, i7 / 32GB
Dynabook reports 210 kg CO₂e for the Tecra A50-J i7/32GB: 113 kg manufacturing and 61 kg use over five US years. Its 1 kg end-of-life phase is not zero.
Intel Core i7-1185G7, 32GB RAM, 15.6-inch display, 2.1 kg device. Storage is not specified in the report.
Inspect reportTurn a source into a documented calculation
Check the exact device, country, remaining service life and refurbishment activities in the calculator. Keep a modelled reuse comparison separate from an emissions inventory and support each customer-facing claim with its own evidence.
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