What MACRS convention applies to laptop computers and office furniture? How did you determine it?

Karl purchased and placed in service the following fixed assets in 2021: Item Date Purchased March 4 November 20 Laptop computers Office furniture Amount $22,000 $9,500 Karl does not want to claim any Section 179 expensing on any of these assets. Karl also does not want to claim any bonus depreciation. (For this project, you do not have to provide the election statement to opt out of bonus depreciation.) Karl computes his cost recovery allowance under MACRS, and all of the business assets are used 100% for business. Business assets purchased before 2021 have been fully depreciated in years prior to 2021.