| ENERGY STAR Partner |
| ASUSTeK Computer Inc. |
ASUSTeK Computer Inc. |
| Product Category |
| Computers |
Computers |
| Type |
| Notebook |
Notebook |
| Brand Name |
| ASUS |
ASUS |
| Model Name |
| K6400Z Series |
UX5400E Series |
| Model Number |
| K6400Z |
UX5400E |
| Additional Model Information |
| K6400Z Series,P6400CP,; K6400Z Series,V6400Z, |
UX5400E Series,BX5400E,; UX5400E Series,RX5400E, |
| Date Available On Market |
| May 16, 2022 |
May 12, 2021 |
| Date Certified |
| February 22, 2022 |
March 24, 2021 |
| Markets |
| United States, Switzerland, Taiwan, Japan, Canada |
United States, Switzerland, Taiwan, Japan, Canada |
| CB Model Identifier |
| ES_41973_K6400Z_022520220006469_3846264 |
ES_41973_UX5400E_052320212158686_5519883 |
| Meets ENERGY STAR Most Efficient 2024 Criteria |
| No |
No |
| Fuel Type |
| Notebook |
Notebook |
| Touch Screen |
| No |
Yes |
| Notebooks, Desktops, Integrated Computers, Slate/Tablets, Two-in-one Notebooks, and Portable All-in-ones Category for TEC (Typical Energy Consumption) Criteria |
| 2 |
2 |
| Category 2: Processor Brand |
| Intel |
Intel |
| Category 2: Processor Name |
| Core i7 |
Core i7 |
| Category 2: Operating System Name |
| Windows 11 Pro |
Windows 10 |
| Category 2: Base Processor Speed Per Core (GHz) |
| 2 |
2.8 |
| Category 2: Physical CPU Cores (count) |
| 14 |
4 |
| Category 2: System Memory (GB) |
| 32 |
16 |
| Category 2: Default Low-power Mode |
| Modern Standby |
Modern Standby |
| Category 2: Long Idle Power Used for Sleep Mode |
| Yes |
No |
| Category 2: Off Mode (watts) |
| 0 |
0.4 |
| Category 2: Sleep Mode (watts) |
| 1 |
1.2 |
| Category 2: Long Idle (watts) |
| 1 |
1.2 |
| Category 2: Short Idle (watts) |
| 8 |
7.9 |
| Category 2: Base TEC Allowance (kWh) |
| 14 |
14 |
| Category 2: Functional Adder Allowances (kWh) |
| 23 |
20.2 |
| Category 2: TEC of Model (kWh) |
| 24 |
26.2 |
| Ethernet Capability |
| No |
No |
| Sleep Mode Default Time Upon Shipment (min.) |
| 10 |
10 |
| Display Sleep Mode Default Time Upon Shipment (min.) |
| 5 |
10 |
| Date Qualified |
| February 22, 2022 |
March 24, 2021 |
