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 liquid-cooled tower with 32 GB DDR5, 8 TB NVMe and 10 TB HDD for gaming and media work
This desktop pairs a 24-core Intel Core Ultra 9 285K processor with 32GB of DDR5 memory and an Nvidia GeForce RTX 5070 Ti graphics card. It targets professionals who need high multi-threaded compute for rendering, simulation or AI workloads alongside modern gaming performance. The system ships with Windows 11 Pro installed on an 8TB NVMe array backed by a 10TB hard drive.
A 360mm quiet-edition all-in-one cooler handles the CPU thermal load while a 140mm fan on the Thermaltake Smart 850W 80 PLUS Bronze power supply keeps internal airflow steady. The liquid loop and the PSU's low-noise fan are designed to maintain low acoustic output during sustained heavy workloads. Over-voltage, under-voltage, over-power and short-circuit protections are built into the power supply.
Two 4TB Samsung 990 PRO PCIe 4.0x4 drives deliver sequential reads up to 7450 MB/s and writes up to 6900 MB/s, accelerating project load times and asset streaming. The Gigabyte Z890 UD motherboard adds Intel 2.5Gb Ethernet, Wi-Fi 6E AX211 and Bluetooth 5.3, plus a rear USB4 Type-C port and multiple USB 3.2 and USB 2.0 headers for peripherals. Four SATA 6Gb/s ports with RAID support and four M.2 slots allow further storage expansion.
| Release Year | 2026 |
|---|---|
| Form Factor | 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 | GeForce RTX 5070 Ti |
| Memory Capacity | 32GB DDR5 |
| Memory Slots (Available/Total) | 4 total |
| Maximum Memory Supported | 192 GB |
| SSD | 8TB 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 | 802.11ax Wireless LAN |
| WiFi Generation | Wi-Fi 6E |
| Bluetooth | Bluetooth 5.4 |
| RJ45 | 1 port |
The 360 mm AIO mounts to the Corsair 4000D top panel with three 140 mm fans; the step often missed is removing the protective film from the cold-plate before seating it on the LGA 1851 CPU.
The sealed 360 mm AIO needs no coolant refill; fans can be swapped with standard 140 mm units. The two 4 TB Samsung 990 PRO M.2 SSDs and 10 TB HDD are user-replaceable via the four M.2 slots and two 3.5 inch bays.
The 850 W 80 PLUS Bronze PSU caps total system draw; the RTX 5070 Ti 16 GB and 24-core Ultra 9 285K can push near that ceiling before the 360 mm radiator reaches thermal saturation.
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