Lenovo / ThinkPad / X1 Carbon

ThinkPad X1 Carbon Gen 11

ThinkPad X1 Carbon Gen 11 is a 14-inch notebook in the X1 Carbon family.

Scope: Product generation / platformPSREF verified
Machine Type: 21HM / 21HN
Model / MTM: 5238Official Models verifiedDirect specifications: 21HM001BJP

Compare generations: ThinkPad X1 Carbon Gen 8–13

Search Japan marketplaces for ThinkPad X1 Carbon Gen 11Amazon Japan Rakuten Ichiba (Japan)Yahoo! Shopping (Japan)Mercari (Japan)Yahoo! Auctions (Japan)External sitesPR

Buying and service essentials

Verified in official sources

Check before buying

Model / MTM: 1 exact specifications recorded5238 Models entries verified
CPU / GPU: 13th Generation Intel U or P Series Core i5 / i77 CPU options / Intel Iris Xe Graphics / Platform options / integrated GPU only
Display: 14-inch / 1920x1200 / 2240x1400 / 2880x18005 platform options / Non-touch / Multi-touch
WWAN: Configuration-dependentRetrofit conditions apply

Upgrades and repair

Memory: LPDDR5 / LPDDR5x / SolderedSO-DIMM: 0 / maximum 64 GB
Storage: M.2 2280 SSDPCIe NVMe 4.0 x4 / PCIe NVMe 4.0 x4 Performance / Maximum simultaneous devices 1 device(s)
Power: USB-C Power Delivery 3.0AC adapter: 45 W / 65 W
Parts / service: Display Battery Keyboard / bezelHMM verified / Key procedures verified

Motherboard and slot topology

Shows the strength of the supporting evidence. It is not a performance score or recommendation. Full sources appear in the Evidence section below.

Memory implementation: LPDDR5 / LPDDR5x / Soldered / SO-DIMM: 0
Storage form factor: M.2 2280 SSD
Maximum simultaneous devices: 1 device(s)

Hardware Maintenance ManualOpen external site in a new tab

Specifications

CPU

CPU options for this platform / Intel13th Generation Intel U or P Series Core i5 / i7

CPU	Integrated GPU	Cores / threads	Base frequency	Max frequency
Intel Core i5-1335UOpen external site in a new tab	Intel Iris Xe Graphics	10 / 12	1.30 GHz	4.60 GHz
Intel Core i5-1340POpen external site in a new tab	Intel Iris Xe Graphics	12 / 16	1.90 GHz	4.60 GHz
Intel Core i5-1345UOpen external site in a new tab	Intel Iris Xe Graphics	10 / 12	1.60 GHz	4.70 GHz
Intel Core i7-1355UOpen external site in a new tab	Intel Iris Xe Graphics	10 / 12	1.70 GHz	5.00 GHz
Intel Core i7-1360POpen external site in a new tab	Intel Iris Xe Graphics	12 / 16	2.20 GHz	5.00 GHz
Intel Core i7-1365UOpen external site in a new tab	Intel Iris Xe Graphics	10 / 12	1.80 GHz	5.20 GHz
Intel Core i7-1370POpen external site in a new tab	Intel Iris Xe Graphics	14 / 20	1.90 GHz	5.20 GHz

Memory

Type: LPDDR5 / LPDDR5x
Maximum capacity: 64 GB
Physical slots: 0
Implementation: LPDDR5 / LPDDR5x / Soldered
Upgrade / replacement: Not recorded
Capacity options: 16 GB / 32 GB / 64 GB
Configuration constraints: Memory is soldered to the system board, has no slots, and is not upgradable
32GB configurations use LPDDR5/x-6000
16GB configurations use LPDDR5/x-6400
64GB configurations use LPDDR5x-6000
Installed memory may use a higher rated speed but runs at the documented platform speed

Check the board layout in the HMMOpen external site in a new tab

Storage

Interface and form factor: PCIe NVMe 4.0 x4 / PCIe NVMe 4.0 x4 Performance
Supported form factors: M.2 2280 SSD
Physical slots: 1
Maximum simultaneous devices: 1 device(s)
Upgrade / replacement: Not recorded
Configuration constraints / exclusions: The PSREF explicitly documents one drive and one M.2 2280 PCIe 4.0 x4 slot.

Search Japan marketplaces for M.2 2280 NVMe SSDAmazon Japan Rakuten Ichiba (Japan)Yahoo! Shopping (Japan)Mercari (Japan)Yahoo! Auctions (Japan)External sitesPR

Check the SSD replacement procedure in the HMMOpen external site in a new tab

Display

Size: 14-inch
Platform configuration options: configuration Resolution Touch Panel / brightness Surface / features
WUXGA IPS low power
14-inch 1920x1200 Non-touch IPS / 400 nits anti-glare / Low power / Eyesafe Certified 2.0
WUXGA IPS touch low power
14-inch 1920x1200 Multi-touch IPS / 400 nits anti-glare / Low power / Eyesafe Certified 2.0 / On-cell touch / 10-point touch
WUXGA IPS touch Privacy Guard
14-inch 1920x1200 Multi-touch IPS / 500 nits anti-glare / ThinkPad Privacy Guard / On-cell touch / 10-point touch
2.2K IPS
14-inch 2240x1400 Non-touch IPS / 300 nits anti-glare / TÜV Low Blue Light
2.8K OLED
14-inch 2880x1800 Non-touch OLED / 400 nits anti-glare anti-reflection anti-smudge / DisplayHDR True Black 500 / Dolby Vision / Eyesafe Certified 2.0

configuration	Resolution	Touch	Panel / brightness	Surface / features
WUXGA IPS low power 14-inch	1920x1200	Non-touch	IPS / 400 nits	anti-glare / Low power / Eyesafe Certified 2.0
WUXGA IPS touch low power 14-inch	1920x1200	Multi-touch	IPS / 400 nits	anti-glare / Low power / Eyesafe Certified 2.0 / On-cell touch / 10-point touch
WUXGA IPS touch Privacy Guard 14-inch	1920x1200	Multi-touch	IPS / 500 nits	anti-glare / ThinkPad Privacy Guard / On-cell touch / 10-point touch
2.2K IPS 14-inch	2240x1400	Non-touch	IPS / 300 nits	anti-glare / TÜV Low Blue Light
2.8K OLED 14-inch	2880x1800	Non-touch	OLED / 400 nits	anti-glare anti-reflection anti-smudge / DisplayHDR True Black 500 / Dolby Vision / Eyesafe Certified 2.0

Listing scope	Configuration	P/N listed for this model	Lenovo FRU flag
Exact configuration 21HM001BJP	14" / WUXGA / Non-Touch / IPS / 400 nits	`5M11H62540`	FRU	View parts relationships and substitutes

Battery architecture

Architecture: Not recorded
Chemistry: Li-ion
Capacity: 57 Wh

Listing scope	Component	P/N listed for this model	Lenovo FRU flag
Exact configuration 21HM001BJP	Internal battery	`5B10W13973`	FRU	View parts relationships and substitutes	Search Japan marketplaces by battery P/NAmazon JapanOpen external site in a new tab Rakuten Ichiba (Japan)Open external site in a new tab Yahoo! Shopping (Japan)Open external site in a new tab Mercari (Japan)Open external site in a new tab Yahoo! Auctions (Japan)Open external site in a new tabExternal sitesPR

Each row is a platform configuration option. Simultaneous installation is not inferred.

Power and AC adapter

Connector: USB-C Power Delivery 3.0
Wattage: 45 W / 65 W

Wireless and WWAN

WLAN options: Intel Wi-Fi 6E AX211, 802.11ax 2x2 Wi-Fi and Bluetooth 5.3
WWAN: Configuration-dependent
Retrofit / conditions: Retrofit conditions apply
WWAN options: Wireless WAN upgradable to 4G or 5G with antenna ready
Fibocom L860-GL-16 4G LTE CAT16 with embedded eSIM
Fibocom FM350-GL 5G Sub-6 GHz with embedded eSIM
No support

Ports and docking

Ports: 2x USB 3.2 Gen 1 Type-A, one Always On
2x Thunderbolt 4 / USB4 40Gbps with Power Delivery 3.0 and DisplayPort 1.4a
HDMI 2.1 up to 4K at 60Hz
Headphone / microphone combo jack
Optional nano-SIM card slot on WWAN models
Docking support: Various docking solutions supported via Thunderbolt or USB-C

Dimensions and weight

Models with 720p camera: 315.6 × 222.5 × 14.96 mm
Models with other cameras: 315.6 × 222.5 × 15.36 mm
Platform starting weight: 1.12 kg / Starting weight

Official maintenance documentation and key procedures

ThinkPad X1 Carbon Gen 11 and X1 Yoga Gen 8 Hardware Maintenance ManualOpen external site in a new tabThird Edition · 2024-07Scope: Combined manual for ThinkPad X1 Carbon Gen 11 and X1 Yoga Gen 8

Key procedures

Base cover: p.70–71
Built-in battery: p.72
M.2 SSD: p.73
Display assembly: p.95–96
Keyboard bezel assembly: p.97

Part number information

Part numbers and their relationships to this product or model are shown when verified in official Lenovo sources.

Official Model-listed parts

Not collected

KATABAN.FYI has not yet collected official Model-listed parts for this product. This is not evidence that no compatible parts exist.

Display: View display parts
Battery: View battery parts
Keyboard / bezel: View keyboard parts

Model / MTM

5238

Codes listed in Lenovo Models identify a relationship to this product. They do not establish exact CPU, memory, storage or other configuration details.

Model / MTM codes verified in official sources: 5238
Exact configuration data: 1

Enter a code to search the official Lenovo Models data for this product.

Model / MTM with recorded exact specifications

Exact specifications recorded

These are sold configurations listed in Lenovo Models. They are not serial-number or as-built configurations. Each value comes directly from the applicable Model / MTM row.

Model / MTM	Machine Type	Region / Country/Region	Processor	Graphics	Memory	Storage	Display	Touchscreen	WLAN / Bluetooth	WWAN	OS	Official evidence
`21HM001BJP`	`21HM`	JAPAN / Japan	Intel Core i5-1335U, 10C (2P + 8E) / 12T, P-core 1.3 / 4.6GHz, E-core 0.9 / 3.4GHz, 12MB	Integrated Intel Iris Xe Graphics	16GB Soldered LPDDR5/x-6400	256GB SSD M.2 2280 PCIe 4.0x4 NVMe Opal 2.0	14" WUXGA (1920x1200) IPS 400nits Anti-glare, 100% sRGB, Low Power	None	Intel Wi-Fi 6E AX211, 802.11ax 2x2 + BT5.3	Non-WWAN	Windows 11 DG Windows 10 Pro 64, Japanese	Lenovo Models

Evidence

6 sources. Of 12 product claims, 12 are verified with high confidence.Display, battery and keyboard parts relationships each show their state as verified in official sources. Procedure coverage in official maintenance documentation is audited per product for major components.