HP ProBook 4 G1i 16 Notebook AI PC — Intel Core Ultra 7 255U, 16GB DDR5, 512GB SSD, FreeDOS (CT1G9ET)
The HP ProBook 4 G1i 16 Notebook AI PC is a commercial-grade business laptop built for growing organisations that need reliable daily performance, layered endpoint security, and a spacious display in a portable chassis. Powered by the Intel Core Ultra 7 255U processor with an integrated Neural Processing Unit (NPU), this machine is designed to handle AI-assisted workflows alongside conventional productivity tasks without compromise. It suits IT administrators, field professionals, and office workers who need a future-ready device with manageable total cost of ownership.
Technical Specifications
Processor
| Specification | Detail |
|---|---|
| Processor | Intel Core Ultra 7 255U |
| Base clock | 2.0 GHz (LP E-core) |
| Max Turbo frequency | Up to 5.2 GHz (P-core) |
| Cache | 12 MB L3 |
| Cores / Threads | 12 cores / 14 threads |
| NPU | Intel AI Boost — 12 TOPS |
| Graphics | Intel Graphics (integrated) |
Memory
| Specification | Detail |
|---|---|
| Installed RAM | 16 GB DDR5-5600 |
| Configuration | 1× 16 GB SO-DIMM |
| Slots | 2 (1 free) |
| Maximum supported | 48 GB |
Storage
| Specification | Detail |
|---|---|
| Drive | 512 GB PCIe® NVMe™ M.2 SSD |
| Form factor | M.2 2280 |
Display
| Specification | Detail |
|---|---|
| Size | 16.0-inch diagonal |
| Resolution | WUXGA — 1920 × 1200 |
| Panel type | IPS, Anti-Glare UWVA |
| Aspect ratio | 16:10 |
| Refresh rate | 60 Hz |
Camera & Audio
| Specification | Detail |
|---|---|
| Webcam | FHD (1080p) with Temporal Noise Reduction |
| IR camera | Optional |
| Speakers | Poly Studio tuned dual speakers |
| Microphone | Dual integrated array |
Connectivity
| Specification | Detail |
|---|---|
| Wi-Fi | Intel AX211 — Wi-Fi 6E (802.11ax), 2×2 |
| Bluetooth | 5.3 |
| Ethernet | RJ-45 (Gigabit) |
| USB-C | 2× USB 3.2 Gen 2 Type-C (20 Gbps, Power Delivery, DisplayPort 1.4) |
| USB-A | 2× USB 3.2 Gen 1 Type-A |
| Video out | HDMI 2.1 |
| Audio | 3.5 mm combo jack |
Security
| Specification | Detail |
|---|---|
| Platform security | HP Wolf Security for Business (hardware-enforced) |
| Biometrics | Fingerprint reader |
| Privacy | Optional IR camera with Windows Hello |
| Locking | Nano security lock slot |
Power
| Specification | Detail |
|---|---|
| Battery | 3-cell, 51 Wh Li-ion polymer |
| Battery life | Up to approximately 13.25 hours (MobileMark 2018) |
| AC adapter | 65 W |
Physical
| Specification | Detail |
|---|---|
| Colour | Pike Silver |
| Cover material | 50% post-industrial recycled aluminium |
| Dimensions (W × D × H) | Approximately 359.4 × 251.1 × 17.0 mm |
| Weight | Starting from approximately 1.74 kg |
| Operating system | FreeDOS |
| Model number | CT1G9ET |
Note: Dimensions and weight are indicative based on available reference data for this chassis. Confirm exact figures on the HP Africa product page before publication.
Use Cases
Corporate and SME Office Productivity
The ProBook 4 G1i 16 is suited to workers running Microsoft 365, ERP clients, and communication platforms concurrently. The 16 GB DDR5 configuration handles these workloads without sluggishness. Furthermore, the 16-inch 1920 × 1200 screen reduces the need for an external monitor in space-constrained environments, such as shared desks or open-plan offices.
Field and Hybrid Work
The combination of Wi-Fi 6E connectivity, a 13-hour battery, and a sub-1.8 kg chassis means the laptop is practical for professionals moving between sites throughout the day. The aluminium cover provides structural rigidity without adding unnecessary weight. Poly Studio tuned speakers and the FHD webcam with Temporal Noise Reduction ensure video calls remain clear even from noisier environments.
IT-Managed Deployments
IT departments deploying at scale will appreciate the user-accessible upgrade slots and HP Wolf Security’s below-OS protection layer. The FreeDOS configuration (CT1G9ET) allows organisations to deploy their own licensed OS image — a common requirement for volume licensing agreements or standardised enterprise builds. Additionally, the chassis is compatible with HP’s docking ecosystem via the USB-C ports.
AI-Ready Workloads
The Intel NPU’s 12 TOPS rating enables on-device AI inferencing for tasks such as real-time transcription, background blur, and productivity assistants. For instance, Microsoft Copilot in Windows 11 (when the OS is installed) can leverage the NPU to reduce CPU load during AI-assisted summarisation. This makes the CT1G9ET a forward-compatible choice for organisations beginning AI adoption.
Considerations
Is FreeDOS Right for Your Organisation?
The CT1G9ET ships with FreeDOS rather than Windows 11. This suits buyers who hold volume licensing agreements for Windows or who plan to deploy Linux. However, if your team needs an out-of-box Windows experience, you should choose a Windows 11 SKU instead or budget for a Windows licence separately. The hardware is fully compatible with Windows 11 Pro once installed.
Display Resolution: WUXGA vs. 2.5K Options
The WUXGA (1920 × 1200) panel in this configuration delivers a clean, well-proportioned image for document work and video conferencing. That said, the ProBook 4 G1i 16 range also offers a 2.5K (2560 × 1600) display option for buyers who work extensively with fine graphics or dual-page document layouts. If pixel density matters for your use case, the 2.5K SKU is worth considering before purchase.
Graphics Performance
This configuration uses Intel integrated graphics rather than discrete GPU options available elsewhere in the ProBook 4 G1i 16 range. The integrated graphics handle display output, video conferencing, and standard business applications without issue. However, professionals requiring GPU acceleration for CAD, video editing, or machine-learning model training should look at the optional NVIDIA GeForce RTX 3050 configurations instead.
Memory: Single-Channel at Launch
The 16 GB module ships as a single stick, leaving one slot vacant. Single-channel operation performs adequately for the workloads this machine targets. However, adding a second matched module will enable dual-channel mode, providing a measurable uplift in memory bandwidth — a worthwhile upgrade for users running memory-intensive applications regularly.
Frequently Asked Questions
Can I upgrade the RAM in the HP ProBook 4 G1i 16 CT1G9ET?
Yes. The laptop has two SO-DIMM slots. The CT1G9ET ships with one 16 GB DDR5-5600 module in the first slot, leaving the second free. You can add a second 16 GB or 32 GB module to reach 32 GB or 48 GB total. Both slots must use DDR5-5600 modules to maintain compatibility.
What operating system does the CT1G9ET come with?
It ships with FreeDOS. This is an open-source DOS-compatible environment — not a full desktop OS. Most organisations deploy Windows 11 Pro or a Linux distribution on top. The hardware meets all Windows 11 requirements, so installation is straightforward.
Does the HP ProBook 4 G1i 16 support external monitors?
Yes. It outputs video via HDMI 2.1 (up to 4K at 120 Hz) and two USB-C ports with DisplayPort 1.4 support. Additionally, USB-C docking stations compatible with HP’s commercial dock range work with this machine, enabling multi-monitor setups at a desk.
How long does the battery last in real-world use?
HP’s MobileMark 2018 benchmark estimates approximately 13.25 hours. Typical office use — browser tabs, email, video calls — is likely to fall between 8 and 11 hours depending on screen brightness and workload. The 65 W adapter is compact and suitable for travel.
Is the HP ProBook 4 G1i 16 compatible with HP Wolf Security?
Yes. HP Wolf Security for Business is built into the hardware. It operates independently of the operating system, protecting the BIOS and firmware layer regardless of which OS is installed. This protection is active even on FreeDOS, though OS-level security features require a full operating system.
What wireless standard does the CT1G9ET support?
The Intel AX211 adapter supports Wi-Fi 6E (802.11ax), which operates across the 2.4 GHz, 5 GHz, and 6 GHz bands. The 6 GHz band is available on compatible routers and reduces congestion in high-density environments such as offices or conference centres. Bluetooth 5.3 is also included.
Related Products
- HP ProBook 4 G1i 14 Notebook AI PC
- HP ProBook 4 G1a 16 Notebook AI PC (AMD Ryzen)
- HP EliteBook 860 G11 16-inch Notebook
- HP ProBook 460 G11 16-inch Notebook
For the full HP ProBook range and official product information, visit the HP Africa ProBook page.




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