DELL OptiPlex All-in-One 7420 7DX9X Core i5-14500 16GB 256GB 23.8" all-in-one PC
- All-in-One PC
- All-in-One
Adamant Custom
A 24-core Intel Core Ultra 9 285K desktop with 32GB DDR5, 4TB NVMe storage, liquid cooling and integrated graphics
This desktop ships with a 24-core Intel Core Ultra 9 285K processor and 32GB of DDR5 memory in a mid-tower chassis. It targets creators and power users who need strong multi-threaded performance without a discrete graphics card. The system arrives with Windows 11 Pro installed and a three-year warranty. Builders who require dedicated GPU acceleration for rendering or gaming should look elsewhere.
The board provides four memory slots with a 192GB ceiling, so the fitted 32GB kit leaves ample room for future upgrades. Storage starts at 4TB on a Samsung 990 PRO NVMe drive rated for 7450 MB/s reads and 6900 MB/s writes, plus three additional M.2 slots and two 3.5-inch bays for expansion. The integrated graphics share system memory, which limits frame buffers in heavy 3D workloads.
A 360mm quiet-edition liquid cooler handles the CPU while two 140mm PWM fans move air through the front panel. The 850W 80 PLUS Bronze power supply uses Japanese main capacitors and a low-noise 140mm fan with over-voltage, under-voltage, over-power and short-circuit protection. In typical productivity loads the cooling runs quietly, though sustained all-core turbo at 5.70 GHz will raise fan speeds and power draw.
| Release Year | 2026 |
|---|---|
| Form Factor | Mid Tower |
| AI Features | AI Ready |
| Color | Black |
| Cooling System | Liquid Cooling |
| Operating System | Windows 11 Pro |
| Windows 11 | Ready |
| CPU Type | Intel Core Ultra 9 (Series 2) |
| CPU Name | Intel Core Ultra 9 285K |
| CPU Socket Type | LGA 1851 |
| GPU/VGA Type | Integrated Graphics |
| Memory Capacity | 32GB DDR5 |
| Memory Slots (Available/Total) | 4 total |
| Maximum Memory Supported | 192 GB |
| SSD | 4TB NVMe |
| HDD | No |
| Optical Drive Type | No |
| Screen Size | No Screen |
| Audio Chipset | Integrated |
| Audio Channels | 7.1 channels |
| LAN Chipset | Integrated |
| LAN Speed | 2.5Gbps |
| WLAN | 802.11be Wireless LAN |
| WiFi Generation | Wi-Fi 7 |
| Bluetooth | Bluetooth 5.4 |
| RJ45 | 1 port |
Yes, the board provides four SATA 6Gb/s ports that support RAID 0, 1, 5 and 10, so existing SATA drives connect directly without adapters.
Check that the pump and the three 140 mm PWM fans spin up, then confirm CPU temperatures stay low under load using the BIOS hardware monitor or Windows monitoring software.
The box contains the assembled mid-tower PC with the Core Ultra 9 285K, 32 GB DDR5, 4 TB Samsung 990 PRO SSD, 360 mm AIO cooler, 850 W PSU, Windows 11 Pro, Wi-Fi 7 and Bluetooth 5.4; you only need to add a monitor, keyboard and mouse.
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