Lenovo ThinkPad E14 Gen 7 Intel U5-225U/ 16GB RAM/ 512GB SSD
PRODUCT DESCRIPTION
Lenovo ThinkPad E14 Gen 7, Intel U5-225U / 16GB RAM / 512GB SSD (21SX000GSG) - 3 Years Local Warranty
Limited Time Promotion, While Stock Last Only.
14-inch Business Laptop With Memory You Can Actually Upgrade
This build of the ThinkPad E14 Gen 7 uses Intel's Core Ultra 5 225U on the Arrow Lake platform, and that choice carries a consequence worth understanding: Arrow Lake E14s use two DDR5 SODIMM slots supporting up to 64GB. The 16GB it ships with is not the end of the machine's life — memory can be added later, which is unusual in a modern thin laptop and increasingly rare across ThinkPad.
12 Cores, 14 Threads, and 12MB of Cache
The Core Ultra 5 225U runs 12 cores — 2 performance, 8 efficient and 2 low-power efficient — and 14 threads, turbo to 4.8 GHz on the performance cores, with 12MB of Intel Smart Cache. For office applications, browser-heavy work and line-of-business software, that is comfortably more parallel capacity than the workload will usually ask for.
Two Storage Slots, So There Is Room to Grow
Arrow Lake E14 builds carry two M.2 slots — one 2242 and one 2280, both PCIe 4.0 x4. The 512GB drive supplied occupies one of them. Whether the second is free depends on this specific build, but the platform provides it, which is what makes this chassis worth buying for a five-year deployment.
Wired Ethernet, Thunderbolt 4 and a Full Port Set
Gigabit RJ-45 ethernet on board — still the deciding feature for many Singapore offices — alongside Thunderbolt 4 / USB4 at 40 Gbps with DisplayPort 2.1 and 15–65 W power delivery, a second USB-C at 20 Gbps, two USB-A ports (one always-on), HDMI 2.1 to 4K/60 and a 3.5 mm combo jack. Very little needs a dongle.
Lenovo ThinkPad E14 Gen 7 Datasheet — Technical Specifications
General
| Product | Lenovo ThinkPad E14 Gen 7 |
| Part Number | 21SX000GSG |
| Machine Type | 21SX |
| Operating System | Windows 11 Pro 64-bit |
| Warranty | 3-Year Onsite, per the distributor configuration for this part number |
| Local Warranty (Singapore) | Included with every SourceIT purchase, with GST invoice |
Processor & Graphics
| Processor | Intel Core Ultra 5 225U (Arrow Lake) |
| Cores / Threads | 12 cores (2 P-core + 8 E-core + 2 LP E-core) / 14 threads |
| Base Frequency | P-core 1.5 GHz / E-core 1.3 GHz / LP E-core 700 MHz |
| Max Turbo | P-core 4.8 GHz / E-core 3.8 GHz / LP E-core 2.4 GHz |
| Cache | 12MB Intel Smart Cache |
| Graphics | Integrated Intel Graphics, up to 8 TOPS |
| NPU | Intel AI Boost, up to 12 TOPS (platform up to 24 TOPS) |
| Base / Turbo Power | 15 W base, 57 W maximum turbo |
Memory & Storage
| Memory Supplied | 16GB DDR5-5600 SODIMM |
| Memory Architecture | Two DDR5 SODIMM slots, dual-channel capable — socketed, not soldered |
| Maximum Memory | 64GB |
| Storage Supplied | 512GB M.2 2242 PCIe 4.0 x4 NVMe SSD with Opal 2.0 |
| Storage Architecture | Two M.2 slots on this platform — one M.2 2242 and one M.2 2280, both PCIe 4.0 x4 |
Display
| Screen Size | 14" |
| Resolution | WUXGA 1920 x 1200 |
| Aspect Ratio | 16:10 |
| Panel Type | IPS, anti-glare |
| Brightness | 300 nits |
| Colour Gamut | 45% NTSC |
| Refresh Rate | 60 Hz |
Ports & Connectivity
| Thunderbolt / USB-C | 1x USB-C Thunderbolt 4 / USB4 40 Gbps, USB PD 15–65 W, DisplayPort 2.1; 1x USB-C 20 Gbps (USB 3.2 Gen 2x2), USB PD 15–65 W, DisplayPort 1.4 |
| USB-A | 1x USB-A 5 Gbps (USB 3.2 Gen 1); 1x USB-A 10 Gbps (USB 3.2 Gen 2), Always On |
| Video Out | 1x HDMI 2.1, up to 4K at 60 Hz |
| Ethernet | 1x RJ-45 gigabit, with Wake-on-LAN support |
| Audio | 1x 3.5 mm headphone / microphone combo jack |
| Wireless | Wi-Fi 6E AX211 2x2, Bluetooth |
| WWAN | Not supported on this model |
Battery & Power
| Battery | 64Wh Li-ion |
| Charging | Rapid Charge — up to 80% in one hour on the 64Wh battery |
| AC Adapter | 65 W USB-C |
Security & Manageability
| TPM | Discrete TPM 2.0, TCG certified, FIPS 140-3 certified |
| Fingerprint Reader | Touch-style reader integrated in the power button, match-on-chip |
| Camera | HD 720p with privacy shutter |
| Physical Lock | Kensington Nano Security Slot |
| Keyboard | Backlit, 6-row, spill-resistant, Copilot key, TrackPoint and precision touchpad |
Physical & Durability
| Dimensions | 313 x 220.3 x 19.7 mm maximum (10.1 mm front / 15.25 mm rear) |
| Weight | From 1.32 kg (2.91 lb) |
| Chassis | Aluminium top with PC-ABS or aluminium bottom, depending on build |
| Durability | MIL-STD-810H military test passed |
| Audio | Stereo speakers 2 W x 2, Dolby Atmos, audio by HARMAN; dual-microphone array with smart noise cancelling |
| Certifications | ENERGY STAR 9.0; EPEAT 1.0 Gold; TCO Certified generation 10; RoHS |
Configuration-Dependent Items
| Free M.2 Slot | The platform provides two M.2 slots and one is occupied by the supplied 512GB drive. Ask us to confirm the second slot is free before planning a storage upgrade |
| Memory Module Split | Whether the 16GB is a single 16GB module (leaving one slot free) or two 8GB modules is build-specific — confirm with us if you intend to upgrade |
| Chassis Finish | Black or Grey, depending on build |
Compatibility & Fit
Where this model sits. The ThinkPad E series is Lenovo's business line for organisations that want ThinkPad build quality, keyboard and manageability without the price of a T or X series. This particular build is the one to choose when upgradeable memory matters: the Arrow Lake platform gives it two DDR5 SODIMM slots to 64GB, where the Lunar Lake build of the same model name (21U2001JSG) solders its memory permanently at 16GB.
That is the single most important comparison on this page, because both machines are called "ThinkPad E14 Gen 7" and a buyer choosing on name alone will not see it. The 226V build has the stronger graphics and a far more capable NPU; this 225U build has more cores, upgradeable memory and two storage slots. Neither is simply better — they suit different requirements.
Docking: the Thunderbolt 4 port supports DisplayPort 2.1 and 15–65 W power delivery, so it works with Thunderbolt and USB-C docks and with docking monitors such as the ThinkVision P24h-30, which supplies 100 W and gigabit ethernet down one cable. Note this laptop already has its own RJ-45.
Fleet notes: discrete TPM 2.0 with FIPS 140-3 certification, MIL-STD-810H durability testing, and a Kensington Nano lock slot. For a mixed estate, be aware that the E14 and E16 share this platform and its port layout, so one dock and one power adapter specification covers both.
Package Contents & ThinkPad Ordering Information
In the box: ThinkPad E14 Gen 7 laptop, 65 W USB-C AC adapter, and documentation. Windows 11 Pro is pre-installed.
ThinkPad Ordering Information
| 21SX000GSG (this listing) | ThinkPad E14 Gen 7 — Intel Core Ultra 5 225U, 16GB, 512GB |
| 21U2001JSG | ThinkPad E14 Gen 7 — Intel Core Ultra 5 226V, 16GB, 512GB |
| 21SR000DSG | ThinkPad E16 Gen 3 — Intel Core Ultra 7 255U, 16GB, 512GB |
| 21R5002BSG | ThinkPad L13 Gen 6 — Intel Core Ultra 5 225U, 16GB, 512GB |
Datasheet & Downloads
- Lenovo PSREF specification book — ThinkPad E14 Gen 7 (Intel) (PDF)
- Lenovo PSREF product page — ThinkPad E14 Gen 7 (Intel)
- Lenovo per-part-number configuration (21SX000GSG) on PSREF
The PSREF specification book documents the ThinkPad E14 Gen 7 (Intel) platform — chassis, ports, memory architecture and certifications, which are fixed for the machine type. The per-part-number link opens Lenovo's configuration record for this exact SKU and renders in a normal browser; it is the definitive reference for the options fitted to this particular build.
Frequently Asked Questions — Lenovo ThinkPad E14 Gen 7
Can I add more memory later?
Yes — this build uses two DDR5 SODIMM slots and supports up to 64GB. That is the main practical advantage of this configuration over the Lunar Lake 21U2001JSG, whose 16GB is soldered and permanent.
How many cores does the Core Ultra 5 225U have?
12 cores — 2 performance, 8 efficient and 2 low-power efficient — and 14 threads, turbo to 4.8 GHz, with 12MB of cache.
Does it have wired ethernet?
Yes, gigabit RJ-45 on the laptop itself, with Wake-on-LAN. Worth noting because the L13 Gen 6 does not have one.
Is the second M.2 slot free?
The platform has two — one 2242 and one 2280 — and the supplied 512GB drive uses one. Ask us to confirm the second is free for your specific unit before you plan an upgrade.
Is this Windows 11 Pro or Home?
Pro, per the configuration supplied for this part number.
How does the E14 compare with the E16?
Same platform and port set; the E16 Gen 3 is a 16-inch chassis with a numeric keypad, at about 1.63 kg against 1.32 kg. Choose on screen size and whether your users need a numpad.
What warranty does it come with?
This part number is supplied with 3-year onsite service per the distributor configuration, plus local Singapore warranty and a GST invoice from us. Note that Lenovo's PSREF book lists 1-year options as the base warranty for this model — the 3-year onsite cover is part of the configuration as supplied, so keep your invoice with the asset record.
