{"data":{"slug":"keychron-k8-ultra-8k","type":"keyboard","brand":"Keychron","name":"K8 Ultra 8K","aliases":["K8U-J1","K8 Ultra 8K Wireless Custom Mechanical Keyboard"],"release_date":"2026-06","url":"https://arkivo.dev/keyboards/keychron-k8-ultra-8k","specs":{"series":"K Ultra","model_numbers":["K8U-J1"],"gtins":["4894979057969"],"announce_date":null,"status":"available","predecessor":null,"successor":null,"launch_price_usd":null,"launch_price_eur":null,"markets":null,"colors":["Black"],"manufacturer_url":"https://www.keychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboard","spec_sheet_url":null,"manual_url":"https://cdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K8_Ultra_8K_User_Manual.pdf?v=1780467048","eprel_registration_number":null,"warranty_years":1,"segment":"enthusiast","kit_type":"complete","form_factor":"tkl","layout_standards":["ansi"],"layouts":["US English"],"key_count":87,"legend_os":["macos","windows"],"has_numpad":false,"has_function_row":true,"has_arrow_keys":true,"navigation_cluster":"full","key_stagger":"row_staggered","bottom_row":null,"low_profile":null,"switch_technology":"mechanical","switch_feel":["linear"],"switch_brands":["Keychron"],"switch_models":["Apex Red"],"switch_stem":"mx_cross","actuation_force_g":45,"bottom_out_force_g":null,"tactile_force_g":null,"actuation_point_mm":2,"total_travel_mm":4,"switch_rated_keystrokes_million":null,"switches_factory_lubed":true,"actuation_adjustable":null,"actuation_adjustable_range_mm":null,"actuation_adjustment_step_mm":null,"per_key_actuation":null,"rapid_trigger":false,"rapid_trigger_sensitivity_min_mm":null,"multi_action_keys":null,"socd_cleaning":true,"analog_input":null,"hot_swappable":"5_pin","hot_swap_compatibility":"3-pin and 5-pin MX-style mechanical switches","stabilizer_type":"pcb_screw_in","stabilizers_lubed":null,"keycap_material":"pbt","keycap_legends":"doubleshot","keycap_profile":"osa","keycap_thickness_mm":null,"keycap_shine_through":false,"polling_rate_modes":[{"connection":"usb_wired","polling_rate_hz":8000,"receiver":null},{"connection":"2_4ghz","polling_rate_hz":8000,"receiver":"Included Type-A 2.4 GHz receiver"},{"connection":"bluetooth","polling_rate_hz":125,"receiver":null}],"polling_rate_max_hz":8000,"polling_rate_wired_hz":8000,"polling_rate_wireless_hz":8000,"polling_rate_bluetooth_hz":125,"scan_rate_hz":null,"claimed_latency_ms":null,"key_rollover":[{"connection":"usb_wired","rollover":"nkro"},{"connection":"2_4ghz","rollover":"nkro"},{"connection":"bluetooth","rollover":"nkro"}],"anti_ghosting":null,"debounce_adjustable":true,"debounce_time_min_ms":10,"measured_latency":null,"measured_actuation_point_mm":null,"measured_total_travel_mm":null,"measured_operating_force_g":null,"measured_typing_noise_dba":null,"measured_battery_life":null,"measured_weight_g":null,"connection_types":["usb_wired","2_4ghz","bluetooth"],"wireless_technology_name":null,"bluetooth_version":"5.2","bluetooth_devices":3,"multi_device_count":null,"multi_device_switching":"keys","receiver_connector":"usb_a","receiver_storage":null,"receiver_multi_device":null,"wireless_range_m":10,"cable_detachable":true,"keyboard_port":"usb_c","cable_host_connector":null,"cable_type":null,"cable_length_m":null,"usb_passthrough":null,"os_compatibility":["macos","windows","linux","ios","android"],"console_compatibility":null,"battery_type":"li_po","battery_count":null,"battery_capacity_mah":4000,"battery_user_replaceable":null,"battery_life_claimed":[{"connection":"2_4ghz","lighting":"off","polling_rate_hz":8000,"hours":760,"days":null,"months":null},{"connection":"2_4ghz","lighting":"on","polling_rate_hz":8000,"hours":230,"days":null,"months":null}],"battery_life_max_h":760,"battery_life_lighting_off_h":760,"battery_life_lighting_on_h":230,"battery_life_lighting_on_days":null,"battery_life_lighting_off_months":null,"charging_port":"usb_c","charge_time_full_min":300,"quick_charge":null,"use_while_charging":true,"solar_charging":null,"battery_indicator":["led","os_report"],"case_material":"CNC aluminum frame and ABS bottom case","plate_material":"steel","mount_style":null,"pcb_flex_cuts":null,"sound_dampening":["plate_foam","pcb_foam","case_foam","silicone_bottom","other"],"typing_angles_deg":null,"spill_resistant":null,"ip_rating":null,"backlight":"rgb_per_key","led_orientation":"south_facing","lighting_zones":null,"lighting_brightness_levels":null,"side_lighting":null,"backlight_sensors":null,"lighting_ecosystems":null,"media_keys":"fn_layer","dedicated_media_key_count":null,"volume_control":"keys","knob_count":0,"knob_programmable":null,"knob_pressable":null,"dedicated_macro_keys":null,"display_type":null,"touchpad":null,"fingerprint_reader":null,"os_mode_switch":"switch","win_key_lock":null,"software_name":"Keychron Launcher","software_platforms":["web"],"firmware_compatibility":["zmk"],"onboard_memory":true,"onboard_profiles":null,"macros":true,"macros_onboard":null,"key_remapping":true,"layers":4,"firmware_updatable":true,"wrist_rest":"none","wrist_rest_material":null,"tenting":null,"tenting_angles_deg":null,"dimensions_mm":{"width_mm":359.2,"depth_mm":129.2,"height_mm":null,"front_height_mm":null},"dimensions_with_wrist_rest_mm":null,"weight_g":null,"weight_with_wrist_rest_g":null,"package_dimensions_mm":null,"package_weight_g":null,"works_with_certifications":null,"other_certifications":null,"in_the_box":["K8 Ultra 8K wireless mechanical keyboard","Type-C cable","Type-A to Type-C adapter","Keycap and switch puller","Manual","Quick Start Guide","Extra keycaps set","Extension adapter for receiver","Type-A 2.4 GHz receiver"],"cables_included":[{"type":"Type-C cable","count":1}],"spare_switches_count":null},"variants":[],"sources":[{"url":"https://www.keychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboard.js","kind":"manufacturer_page","accessed":"2026-10-08","fields":["model_numbers","gtins","colors","kit_type"],"notes":{"model_numbers":"Exact Global/US variant Fully Assembled / Black / Keychron Apex Switch - Red. Brown K8U-J3 and Banana K8U-J4 are excluded from this reference configuration.","gtins":"Exact K8U-J1 variant barcode. Shopify weight 0 is a placeholder, not keyboard mass.","kit_type":"Fully assembled reference variant includes fitted Apex Red switches and PBT keycaps."}},{"url":"https://www.keychron.com/products/keychron-k8-ultra-8k-wireless-custom-mechanical-keyboard","kind":"manufacturer_page","accessed":"2026-10-08","fields":["manufacturer_url","series","segment","form_factor","layout_standards","layouts","legend_os","switch_brands","switch_models","switches_factory_lubed","keycap_material","keycap_legends","keycap_profile","keycap_shine_through","stabilizer_type","connection_types","bluetooth_version","polling_rate_modes","key_rollover","battery_type","battery_capacity_mah","battery_life_claimed","use_while_charging","case_material","plate_material","sound_dampening","backlight","led_orientation","software_name","software_platforms","firmware_compatibility","macros","key_remapping","dimensions_mm","os_compatibility"],"notes":{"segment":"Customizable wireless mechanical keyboard marketed for typing, work and gaming.","layouts":"Global/US ANSI reference has US English legends. Regional ISO/JIS products are not inherited.","polling_rate_modes":"Selectable maxima. Manual p 19 states default wired / 2.4 GHz 1000 Hz and Bluetooth 125 Hz. Launcher changes report rate. No scan rate or latency is calculated.","key_rollover":"Exact specifications state NKRO for both wireless and wired modes. Wireless includes its listed Bluetooth and 2.4 GHz modes.","battery_life_claimed":"Maker up-to estimates in wireless 8K mode: 760 h backlight off, 230 h RGB at lowest brightness. Firmware version, active/idle workload and sleep policy unstated. Bluetooth 125 Hz is not the 8K condition. PC Gamer quotes 225 h on without a test, current maker 230 h takes precedence.","sound_dampening":"Exact component list identifies EVA foam, IXPE between switches/PCB, EPDM foam, PET film, bottom-case PET film and silicone bottom pad. PET layers use other, not an assumed adhesive tape layer.","dimensions_mm":"Published width/depth only. Front 25.55 mm and back 31.28 mm explicitly exclude keycaps, so they are not stored as fitted-keycap height.","software_platforms":"Browser app in current Chrome/Edge/Opera. Configuration requires wired connection. Keyboard OS support is broader than software connection support.","os_compatibility":"Current exact specifications expressly support macOS, Windows, Linux. Manual separately names iOS and Android."}},{"url":"https://www.keychron.com/cdn/shop/files/Keychron-K8-Ultra-8K-Wireless-Custom-Mechanical-Keyboard-switch-5.png?v=1781062936","kind":"manufacturer_page","accessed":"2026-10-08","fields":["switch_feel","actuation_force_g","actuation_point_mm","total_travel_mm"],"notes":{"switch_feel":"Apex Red column explicitly Linear. Other switch columns excluded.","actuation_force_g":"Apex Red operating force 45 ±10 gf at fixed mechanical pre-travel 2.0 ±0.5 mm. This is not initial spring or bottom-out force.","actuation_point_mm":"Red pre-travel 2.0 ±0.5 mm. Mechanical contact actuation, not an adjustable setting.","total_travel_mm":"Apex Red travel 4.0 mm with published tolerance +0.1/-0.4 mm."}},{"url":"https://www.keychron.com/cdn/shop/files/Keychron-K8-Ultra-8K-Wireless-Custom-Mechanical-Keyboard-switch-2-2.png?v=1781163436","kind":"manufacturer_page","accessed":"2026-10-08","fields":["switch_stem"],"notes":{"switch_stem":"Exact Apex diagram explicitly labels POM, MX stem. Reinforced wall/box around MX-compatible stem is not a different keycap mount."}},{"url":"https://cdn.shopify.com/s/files/1/0059/0630/1017/files/Keychron_K8_Ultra_8K_User_Manual.pdf?v=1780467048","kind":"manual","accessed":"2026-10-08","fields":["manual_url","key_count","switch_technology","has_numpad","has_function_row","has_arrow_keys","navigation_cluster","key_stagger","bluetooth_devices","multi_device_switching","receiver_connector","wireless_range_m","keyboard_port","cable_detachable","os_compatibility","charging_port","charge_time_full_min","battery_indicator","media_keys","volume_control","os_mode_switch","layers","onboard_memory","firmware_updatable","in_the_box","cables_included"],"notes":{"key_count":"Printed p 10 states 87. Physical typing/function keys, including top-right ordinary key positions, not separate rotary/media controls.","has_numpad":"TKL manual complete layout pp 12-15 excludes number pad.","has_function_row":"Complete ANSI layouts pp 12-15 include F1-F12.","has_arrow_keys":"Complete layouts pp 12-15 show separate four arrows.","navigation_cluster":"Layouts include separate Home, End, PageUp, PageDown.","key_stagger":"ANSI layout drawings pp 12-15 show staggered typing rows.","bluetooth_devices":"p 18 explicitly pairs three Bluetooth hosts via Fn+1/2/3. Layer diagrams misprint BTH2 twice, p 16 correctly identifies BTH3.","multi_device_switching":"p 18 short Fn+1/2/3 selects Bluetooth host. Rear switch chooses connection mode, not Bluetooth host.","wireless_range_m":"p 10 Bluetooth operating distance within 10 m in open space. Not a 2.4 GHz guarantee.","os_compatibility":"Manual pp 19-20 names macOS/iOS and Windows/Android modes. Current exact maker specifications also explicitly list Linux. Some multimedia shortcuts vary by host.","charge_time_full_min":"pp 10 and 17 state around 5 hours. Approximate maker claim, not measured recharge. Charging up to 5 V 1 A, recommends 5 V 1 A adapter or USB 3.0.","battery_indicator":"Printed p 10 physical power LED indicates charging, full and low power. Battery shortcut in pp 13/15 does not specify its display mechanism, so key-lighting output is not inferred.","media_keys":"Mac default top-row multimedia keys. Windows playback via Fn layer 3. These are shared function positions, not additional dedicated media buttons.","volume_control":"F11/F12 or Fn-layer equivalent. No knob.","layers":"p 8 explicitly four layers stored on keyboard: 0/1 Mac, 2/3 Windows.","onboard_memory":"p 8 expressly says four layers of key settings on the keyboard and hardware OS toggle activates the appropriate base layer. No profile-slot count inferred.","firmware_updatable":"pp 8-9 Keychron Launcher firmware flashing, wired mode required.","in_the_box":"Manual p 2 complete reference package list. Current maker box infographic additionally shows screwdriver/hex key, but these are absent from manual and excluded until exact supplied scope is reconciled."}},{"url":"https://www.pcgamer.com/hardware/gaming-keyboards/keychron-k8-ultra-8k-review/","kind":"review_site","accessed":"2026-10-08","fields":["status","hot_swappable","hot_swap_compatibility","knob_count","rapid_trigger","wrist_rest","battery_indicator"],"notes":{"status":"August 19, 2026 tested retail-model review establishes released product. Does not claim current in-stock status.","hot_swappable":"Exact K8 Ultra review explicitly 3/5-pin compatibility and tested a Cherry MX replacement. Tested Brown configuration shares same chassis/PCB. No transferred Brown force or latency.","hot_swap_compatibility":"Conventional mechanical MX-style switches. Does not establish magnetic-switch support.","knob_count":"Reviewer expressly notes no rotary volume knob.","rapid_trigger":"Exact review expressly says no rapid trigger. Firmware version unstated, this is the reviewed 2026 feature scope.","wrist_rest":"Review recommends a separately obtained rest. Exact TechRadar review also expressly notes no supplied wrist support.","battery_indicator":"Reviewer explicitly observes the keyboard battery percentage in Windows settings. This establishes OS reporting on the tested Windows setup."}},{"url":"https://www.techradar.com/computing/keyboards/keychron-k8-ultra-8k-review","kind":"review_site","accessed":"2026-10-08","fields":["socd_cleaning","debounce_adjustable","debounce_time_min_ms"],"notes":{"socd_cleaning":"Exact tested K8 Ultra Launcher has SOCD with three modes for key priority. This is software-assisted binary key handling, not proof of analog gamepad output. Firmware version unstated.","debounce_adjustable":"Exact review identifies separate press/reset debounce sliders 10-50 ms with 1 ms increments.","debounce_time_min_ms":"Lowest selectable 10 ms in reviewer Launcher interface. Not a measured end-to-end latency or a firmware-independent physical delay."}},{"url":"https://green-keys.info/keychron-k2-ultra-8k-k8-ultra-8k/","kind":"press","accessed":"2026-10-08","fields":["release_date"],"notes":{"release_date":"Contemporaneous June 13, 2026 launch report says K2 Ultra / K8 Ultra launched June 12, points to maker June 11 social announcement, and confirms Global official sales. Store month to avoid timezone-dependent day. Product.js published June 11 corroborates month, not independently retail availability."}},{"url":"https://www.keychron.com/pages/warranty","kind":"manufacturer_page","accessed":"2026-10-08","fields":["warranty_years"],"notes":{"warranty_years":"Global/US maker policy gives twelve months unless purchase documents explicitly state otherwise. Exact K8 Ultra manual says defective components are replaced during warranty rather than the whole customizable keyboard. Regional purchase terms and statutory rights may differ."}}],"fields_filled":86,"updated":"2026-10-16"},"meta":{"api_version":"1","docs":"https://arkivo.dev/api"}}