HP Pro Tower 400 G9 Core i7-13700, 8GB RAM, 512GB SSD, CPU Only (9H750ET) – A 16-Core Tower That Runs Legacy PCI Cards and Modern Graphics in One Chassis
The HP Pro Tower 400 G9 PCI (9H750ET) is a business tower desktop built for workplaces that mix older specialist hardware with modern upgrades. It includes a legacy PCI slot, so existing serial, parallel, data-acquisition or machine-control cards keep working, alongside a PCIe 4.0 x16 slot for a modern graphics card. In addition, it uses a 260W internal power supply rated up to 92% efficiency, which gives more headroom for add-in cards than compact external-adapter towers.
At its core, the 13th Gen Intel Core i7-13700 runs 16 cores and 24 threads, boosts up to 5.2GHz and carries a 30MB L3 cache, so control software, CAD viewers, databases and many open apps run smoothly together. Furthermore, the Intel Q670 chipset and Intel I219-LM Gigabit Ethernet provide a business-class wired network base, while 8GB of DDR4-3200 RAM sits in one of two DIMM slots and a 512GB PCIe NVMe SSD keeps start-up quick. Two 3.5-inch bays, a front USB-C 10Gbps port and HP Wolf Security features such as HP Sure Start Gen7, HP Tamper Lock and HP Secure Erase complete the build. As a result, it suits factories, laboratories and engineering offices from Athi River and Industrial Area to Thika and Mombasa.
Key Features
In short, this HP Pro Tower 400 G9 PCI stands out in five areas:
- Legacy PCI Slot Plus PCIe 4.0 x16: Keep older specialist cards while adding a modern graphics card.
- 13th Gen Intel Core i7-13700: 16 cores and 24 threads up to 5.2GHz for heavy, parallel workloads.
- 260W Internal PSU, Up to 92% Efficient: Consequently, add-in cards get more power headroom.
- Intel Q670 Chipset and I219-LM Ethernet: A business-class platform for wired office and plant networks.
- HP Wolf Security: HP Sure Start Gen7, HP Tamper Lock and HP Secure Erase protect firmware and data.
Technical Specifications
Specifically, the table below details every core specification:
| Specification | Details |
|---|---|
| Brand | HP |
| Model | Pro Tower 400 G9 PCI Desktop PC |
| Part Number | 9H750ET |
| Processor | Intel Core i7-13700 (13th Gen, 16 cores, 24 threads, up to 5.2GHz with Intel Turbo Boost) |
| Cache | 30MB L3 |
| Chipset | Intel Q670 |
| Graphics | Intel UHD Graphics 770 (integrated) |
| Memory | 8GB DDR4-3200 non-ECC UDIMM (1 x 8GB) |
| Memory Slots | 2 DIMM (1 free) |
| Storage | 512GB PCIe NVMe SSD |
| Drive Bays | Two 3.5″ HDD bays |
| Expansion Slots | 1 PCIe 4.0 x16; 1 PCIe x1; 1 PCI; 1 M.2 2230 (WLAN); 1 M.2 2280 (storage) |
| Front Ports | 1 x USB Type-C 10Gbps, 3 x USB-A 10Gbps, headphone/mic combo jack |
| Rear Ports | 3 x USB-A 5Gbps, 2 x USB-A 480Mbps, HDMI 1.4, DisplayPort 1.4, RJ-45, audio-out, power connector |
| Networking | Intel I219-LM Gigabit Ethernet |
| Audio | Realtek ALC3252 codec, universal audio jack with CTIA and OMTP headset support |
| Security | TPM 2.0 (Common Criteria EAL4+, FIPS 140-2 Level 2), HP Sure Start Gen7, HP Tamper Lock, HP Secure Erase, HP Sure Click, HP Sure Sense2, HP Sure Admin, Absolute Persistence module |
| Power Supply | 260W internal, up to 92% efficiency, active PFC |
| Included Peripherals | CPU only (no monitor) |
| Operating System | FreeDOS |
| Form Factor | Tower |
| Colour | Jack Black |
| Dimensions (W x D x H) | 15.5 x 30.8 x 33.7 cm |
| Weight | Approx. 5.31 kg |
| Package Dimensions (W x D x H) | 40 x 28.7 x 49.9 cm |
| Package Weight | 8.4 kg |
| Operating Temperature | 10 to 35°C |
| Operating Humidity | 10 to 90% RH |
| Certifications | TCO Certified generation 9 |
Who This Is Best Suited For
As a result of this combination of specs, three types of users benefit most:
- Factories and plants with legacy control cards: The PCI slot therefore lets existing machine and serial cards move to a modern PC.
- Laboratories and testing centres: For example, data-acquisition cards and instrument software run on the 16-core i7.
- Engineering and design offices: In addition, the PCIe 4.0 x16 slot and 260W PSU support a graphics card for CAD work.
For other HP towers, all-in-ones and mini PCs, browse our full range of HP Desktops.
Recommended Action
Ultimately, the HP Pro Tower 400 G9 PCI (9H750ET) gives Kenyan businesses 16-core performance with the slots to keep legacy hardware running and add modern graphics. Order today for fast delivery within Nairobi and countrywide shipping.





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