Lenovo ThinkPad L13 Gen 3 (Intel) 13.3" Laptop
PRODUCT DESCRIPTION
Lenovo ThinkPad L13 Gen 3, Intel Core i-series (Alder Lake U), RAM as titled, M.2 2242 NVMe SSD as titled (21B3006DSG) — 3 Years Onsite, Singapore Local Warranty
Stock status. This exact part number is currently at zero inventory. It is still active while stock lasts, and we can offer a closely matching current-generation configuration on request.
About the ThinkPad L13 Gen 3
The ThinkPad L13 Gen 3 is a Lenovo ThinkPad chassis built to the range's usual Singapore-market brief: MIL-STD-810H tested, discrete TPM 2.0, and Lenovo's ThinkPad keyboard and trackpoint layout. This exact part number is a specific factory build; the full option matrix Lenovo publishes for the machine type is in the Chassis and Platform section below.
Where this configuration sits in the range
The L13 Gen 3 is a 13.3 inch business ultraportable in the L-series line. Lenovo's PSREF for this machine type publishes 12th Gen Intel Core U-series CPUs, soldered DDR4-3200 memory with no slots (a change from earlier L13 revisions), and a single M.2 2242 PCIe 4.0 x4 slot. No onboard RJ-45 on this chassis.
Who this configuration suits
Fleet buyers who need a specific, historically stocked configuration for parts continuity, image compatibility or a like-for-like replacement. For fresh purchases we usually recommend the current generation of the same chassis line — ask us for the equivalent and we will quote both.
ThinkPad L13 Gen 3 21B3006DSG — Full Specifications
This Configuration
Only the fields named in the store title above are asserted for this part number. The distributor build-sheet block that shipped on the earlier version of this page described a different Lenovo machine (identifying the wrong model, chassis and platform) and has been discarded. Everything else the reader wants comes from Lenovo's published chassis facts below.
| Part number | 21B3006DSG |
| Machine type | 21B3 |
| Model | ThinkPad L13 Gen 3 |
| Processor | Intel Core i-series (Alder Lake U) |
| Memory | RAM as titled |
| Storage | M.2 2242 NVMe SSD as titled |
Chassis and Platform — Lenovo published specifications for machine type 21B3
| Machine type | 21B3 (sibling 21B4) |
| Chassis | ThinkPad L13 Gen 3 (Intel), Alder Lake platform |
| Processor family | 12th Gen Intel Core i3/i5/i7 U-series — i3-1215U, i5-1235U/1245U, i7-1255U/1265U |
| Graphics options | Intel UHD Graphics or Intel Iris Xe Graphics (integrated) |
| Memory topology | Soldered DDR4-3200, no slots (per Lenovo's PSREF, this generation is soldered-only, unlike earlier L13 revisions) |
| Memory ceiling | Up to 32GB soldered |
| Storage | One M.2 2242 slot, PCIe 4.0 x4; Opal 2.0; 256GB / 512GB / 1TB |
| Display panels published | 13.3 inch WUXGA (1920x1200) IPS 300 nits standard; 13.3 inch WUXGA IPS 500 nits antiglare with ThinkPad Privacy Guard; multitouch option available |
| Wireless options | Intel Wi-Fi 6 AX201 + Bluetooth 5.1; Intel Wi-Fi 6E AX211 + Bluetooth 5.1 |
| WWAN options | Quectel EM05-G 4G LTE CAT4; Fibocom L860-GL-16 4G LTE CAT16; antenna-ready or No support |
| Battery | Integrated Li-Polymer 46Wh, Rapid Charge to 80% in 1 hour with 65W adapter |
| AC adapter | 45W or 65W USB-C (2-pin, 3-pin, slim variants) — no 135W published |
| Audio | Stereo speakers 2Wx2 Dolby Audio; dual-microphone array far-field Dolby Voice; Realtek ALC3287 codec |
| Security | Discrete TPM 2.0 TCG / FIPS 140-2; Kensington Nano Security Slot 2.5x6 mm |
| Chassis dimensions | 305 x 218 x 17.3 mm; starting at 1.26 kg; Aluminium top / GFRP bottom |
| MIL-STD | MIL-STD-810H military test passed |
| Copilot / AI PC | Not stated — pre-AI-PC generation |
Sources: Lenovo PSREF.
Why This Page Shows Two Specification Groups
The This Configuration block above lists only what the store title asserts for this exact part number: processor, memory and storage. Anything more granular — exact panel, adapter, wireless card — is not asserted here because the distributor build-sheet copy that used to sit in this slot named a different Lenovo machine and could not be trusted for detail.
The Chassis and Platform block underneath quotes what Lenovo publishes for the whole machine type. It tells you what the chassis is capable of — the panels, ports, wireless cards, adapters and warranty terms that Lenovo enumerates — without claiming any single row was fitted to this particular unit.
Reading them side by side is how the storefront tells a part-specific fact apart from a chassis-wide capability. If you need us to confirm a specific option is fitted to this exact part number, ask and we will check with the distributor.
Warranty and Service Cover
Every SourceIT unit is supplied with Singapore local warranty. Lenovo publishes a 3-year onsite base term for this machine type, qualified as (1-yr battery) — the system is covered for three years, the battery for one.
Base warranty terms Lenovo publishes for ThinkPad L13 Gen 3 (21B3):
- 1-year courier or carry-in service
- 1-year limited onsite service
- 3-year (1-yr battery) courier or carry-in service
- 3-year (1-yr battery) limited onsite service
- No base warranty
The 3-year onsite base term carries Lenovo's own (1-yr battery) qualifier verbatim: system three years, battery one. This is the standard PSREF wording for this generation of ThinkPad.
PSREF does not enumerate Premier Support for this chassis. Premier Support and warranty upgrades come from separate Lenovo Services SKUs and are quoted on request.
Register the serial number on Lenovo Support after purchase to activate the Singapore-region base cover.
Ports, Docking and Other Configurations We Stock
Ports on this chassis
- 1x USB-C 3.2 Gen 2
- 1x Thunderbolt 4 / USB4 40Gbps
- 1x USB 3.2 Gen 1 (Type-A)
- 1x USB 3.2 Gen 1 Always On (Type-A)
- 1x HDMI 2.1, up to 4K/60Hz
- 1x 3.5 mm headphone / microphone combo jack
- Optional 1x Smart card reader; optional 1x Nano-SIM slot
- No onboard Ethernet RJ-45 (USB-C adapter required); no SD or microSD reader
Docking is via the Thunderbolt 4 / USB4 port. Lenovo ThinkPad USB-C and Thunderbolt docks work on this chassis. Note that this chassis has no onboard Ethernet, so a USB-C adapter or a dock is needed for wired network.
Other configurations of this machine
This part number is at zero inventory. Ask us for a like-for-like quote on a closely matching current-generation configuration, or on a different variant of the same machine type if any remain in the distributor channel.
Questions We Get Asked About This Machine
Is this a Copilot+ PC or AI PC?
No. This machine type predates Lenovo's AI PC and Copilot+ PC classifications. Lenovo's PSREF book for this chassis does not publish an AI PC category field or an NPU TOPS figure.
Is the 3-year onsite base term real?
Yes. Lenovo publishes a 3-year (1-yr battery) limited onsite service option as one of the base warranty terms for this machine type. The battery is covered for one year under that term; the system is covered for three. See the Warranty and Service Cover accordion.
Is this the current generation?
No. This part number is at zero inventory and the chassis is past its launch generation. Ask us for a closely matching current-generation configuration.
