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 liquid-cooled desktop with a 12-core Ryzen 9 9900X3D, 192GB DDR5, 2TB NVMe and 10TB HDD for heavy multitasking and storage
This liquid-cooled desktop centres on a 12-core AMD Ryzen 9 9900X3D processor running at 4.3 GHz with up to 5.50 GHz boost. It ships with 192 GB of DDR5 memory and a 2 TB NVMe SSD alongside a 10 TB hard drive. The system targets professionals and enthusiasts who need high core counts and large local storage in a single tower.
A 240 mm quiet-edition AIO cooler handles the CPU while two 140 mm PWM fans at the front move air through the tempered-glass chassis. The 850 W 80 PLUS Bronze power supply uses a Japanese main capacitor and includes over-voltage, under-voltage, over-power and short-circuit protection. Acoustic output stays low thanks to the ultra-quiet 140 mm PSU fan and the liquid loop.
The rear I/O panel provides two USB4 ports at 40 Gbps, three USB 10 Gbps ports, four USB 5 Gbps ports and one USB 2.0 port. Front-panel access adds one USB 3.2 Gen 2x2 Type-C, two USB 3.0 ports and dual audio jacks. Internal bays include two 3.5-inch and two 2.5-inch slots, while the motherboard offers four M.2 connectors and two SATA 6 Gb/s headers for further storage growth.
| Release Year | 2026 |
|---|---|
| Form Factor | Desktop |
| AI Features | AI Ready |
| Color | Black |
| Cooling System | Liquid Cooling |
| Operating System | Windows 11 Pro |
| Windows 11 | Ready |
| CPU Type | AMD Ryzen 9 9000 Series |
| CPU Name | AMD Ryzen 9 9900X3D |
| CPU Socket Type | AM5 |
| GPU/VGA Type | Integrated Graphics |
| Memory Capacity | 192GB DDR5 |
| Memory Slots (Available/Total) | 4 total |
| Maximum Memory Supported | 192 GB |
| SSD | 2TB NVMe |
| HDD | 10TB |
| 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 |
Align the triangle on the Ryzen 9 9900X3D with the socket marker, lower the CPU gently, close the retention arm, then mount the AIO block using the supplied AM5 brackets in a cross pattern.
The 10 TB drive with 256 MB cache has no published endurance rating; plan to monitor SMART health and budget a swap once reallocated sectors appear.
The 240 mm Quiet Edition AIO will hit its heat-dissipation ceiling before the 850 W Bronze PSU or motherboard VRMs throttle the 128 MB L3 cache workload.
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