Desktop Computers

Manufacturer

Lenovo Group Limited

Brand Name

Lenovo

Model Number

ThinkStation K-C4

Qualifying Entity

ENERGY STAR®

Additional Model Info

Notes

Purchase By Date (Date Delisted)

Model Name

ThinkStation K-C4

Kit Model Number 1

Extended Properties

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Energy Star Partner

Lenovo Group Limited

Brand Name

Lenovo

Model Name

ThinkStation K-C4

Model Number

ThinkStation K-C4

Additional Model Information

Date Available on Market

3/30/2025

Date Qualified

4/15/2025

Markets

United States, Switzerland, Taiwan, Japan, Canada

Energy Star Model Identifier

ES_1037540_ThinkStation K-C4_04142025155304_89074

Pd Id

4015660

Upc

Type

Desktop

Touch Screen

No

Comp Cat for Tec Typical Energy Consumption Criteria

Comp Cat 0 Processor Brand

Comp Cat 0 Processor Name

Comp Cat 0 Operating System Name

Comp Cat 0 Graphics Category

Comp Cat 0 Default Low Power Mode

Comp Cat 0 Long Idle Power Used for Sleep Mode

Category 1 Processor Brand

Category 1 Processor Name

Category 1 Operating System Name

Category 1 Default Low Power Mode

Category 1 Long Idle Power Used for Sleep Mode

Category 2 Processor Brand

Category 2 Processor Name

Category 2 Operating System Name

Category 2 Default Low Power Mode

Category 2 Long Idle Power Used for Sleep Mode

Comp Cat I1 Processor Brand

Comp Cat I1 Processor Name

Comp Cat I1 Operating System Name

Comp Cat I1 Default Low Power Mode

Comp Cat I1 Long Idle Power Used for Sleep Mode

Comp Cat I2 Processor Brand

Comp Cat I2 Processor Name

Comp Cat I2 Operating System Name

Comp Cat I2 Default Low Power Mode

Comp Cat I2 Long Idle Power Used for Sleep Mode

Comp Cat D1 Processor Brand

Comp Cat D1 Processor Name

Comp Cat D1 Operating System Name

Comp Cat D1 Default Low Power Mode

Comp Cat D1 Long Idle Power Used for Sleep Mode

Comp Cat D2 Processor Brand

Comp Cat D2 Processor Name

Comp Cat D2 Operating System Name

Comp Cat D2 Default Low Power Mode

Comp Cat D2 Long Idle Power Used for Sleep Mode

Wlan Capability

Ethernet Capability

Yes

Bluetooh Capability

Motherboard Form Factor

Other

Motherboard Form Factor Other

Product Dimm Count

4

Multi Channel Memory Support

No

Tc Processor Brand

Tc Processor Name

Tc Operating System Name

Tc Long Idle Power Used for Sleep Mode

Work Processor Brand

Work Processor Name

Work Operating System Name

Sleep Mode Default Time Upon Shipment Min

25

Display Sleep Mode Default Time Upon Shipment Min

10

Wol Wake on Lan From Sleep

Shipped Enabled Under All Conditions

Will the Speed of Any Active 1 Gb S or Higher Ethernet Network Links Be Reduced to Less Than 1 Gb S When Transitioning to Sleep or off Mode

Yes

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  "energy_star_partner": "Lenovo Group Limited",
  "brand_name": "Lenovo",
  "model_name": "ThinkStation K-C4",
  "model_number": "ThinkStation K-C4",
  "additional_model_information": "",
  "date_available_on_market": "2025-03-30T00:00:00",
  "date_qualified": "2025-04-15T00:00:00",
  "markets": "United States, Switzerland, Taiwan, Japan, Canada",
  "energy_star_model_identifier": "ES_1037540_ThinkStation K-C4_04142025155304_89074",
  "pd_id": "4015660",
  "upc": "",
  "type": "Desktop",
  "touch_screen": "No",
  "comp_cat_for_tec_typical_energy_consumption_criteria": "",
  "comp_cat_0_processor_brand": "",
  "comp_cat_0_processor_name": "",
  "comp_cat_0_operating_system_name": "",
  "comp_cat_0_graphics_category": "",
  "comp_cat_0_default_low_power_mode": "",
  "comp_cat_0_long_idle_power_used_for_sleep_mode": "",
  "category_1_processor_brand": "",
  "category_1_processor_name": "",
  "category_1_operating_system_name": "",
  "category_1_default_low_power_mode": "",
  "category_1_long_idle_power_used_for_sleep_mode": "",
  "category_2_processor_brand": "",
  "category_2_processor_name": "",
  "category_2_operating_system_name": "",
  "category_2_default_low_power_mode": "",
  "category_2_long_idle_power_used_for_sleep_mode": "",
  "comp_cat_i1_processor_brand": "",
  "comp_cat_i1_processor_name": "",
  "comp_cat_i1_operating_system_name": "",
  "comp_cat_i1_default_low_power_mode": "",
  "comp_cat_i1_long_idle_power_used_for_sleep_mode": "",
  "comp_cat_i2_processor_brand": "",
  "comp_cat_i2_processor_name": "",
  "comp_cat_i2_operating_system_name": "",
  "comp_cat_i2_default_low_power_mode": "",
  "comp_cat_i2_long_idle_power_used_for_sleep_mode": "",
  "comp_cat_d1_processor_brand": "",
  "comp_cat_d1_processor_name": "",
  "comp_cat_d1_operating_system_name": "",
  "comp_cat_d1_default_low_power_mode": "",
  "comp_cat_d1_long_idle_power_used_for_sleep_mode": "",
  "comp_cat_d2_processor_brand": "",
  "comp_cat_d2_processor_name": "",
  "comp_cat_d2_operating_system_name": "",
  "comp_cat_d2_default_low_power_mode": "",
  "comp_cat_d2_long_idle_power_used_for_sleep_mode": "",
  "wlan_capability": "",
  "ethernet_capability": "Yes",
  "bluetooh_capability": "",
  "motherboard_form_factor": "Other",
  "motherboard_form_factor_other": "",
  "product_dimm_count": "4",
  "multi_channel_memory_support": "No",
  "tc_processor_brand": "",
  "tc_processor_name": "",
  "tc_operating_system_name": "",
  "tc_long_idle_power_used_for_sleep_mode": "",
  "work_processor_brand": "",
  "work_processor_name": "",
  "work_operating_system_name": "",
  "sleep_mode_default_time_upon_shipment_min": "25",
  "display_sleep_mode_default_time_upon_shipment_min": "10",
  "wol_wake_on_lan_from_sleep": "Shipped Enabled Under All Conditions",
  "will_the_speed_of_any_active_1_gb_s_or_higher_ethernet_network_links_be_reduced_to_less_than_1_gb_s_when_transitioning_to_sleep_or_off_mode": "Yes"
}