Corsair ONE i300
Corsair

ONE i300

CPU i9 12900K
GPU 3080
Max RAM 64GB
Drives 2
From $3,020
Seller Corsair

The Corsair ONE i300 is a mini PC powered by the Intel i9 12900K (12th gen). It features 8 performance cores and 24 threads and a LGA1700 socket. Graphics are handled by the discrete NVIDIA 3080. Supports up to 64GB of RAM across 2 slots at 4800 MT/s. Storage capacity of up to 2 drives including 1 NVMe, 1× 2.5" SATA. Connectivity includes USB4 40Gbps, HDMI 2.1. Networking features 1 Ethernet port (up to 2.5G). Dimensions: 380 × 200 × 173mm (13.15L). Uses a SFX PSU (750W).

CPU & Performance

CPUi9 12900K
Generation12th
P-Cores8
Threads24
Single-core82
Multi-core61
SocketLGA1700

GPU

GPU3080
Discrete GPUYes
Integrated GPUYes
eGPU supportNo

RAM

Max RAM64GB
RAM slots2
Max speed4800 MT/s
ECC supportNo

Storage

Max drives2
NVMe slots1
Gen4 x41
2.5" SATA1
SD cardNo

Ports & Connectivity

HDMI 2.11
USB4 40Gbps2
Max displays6

Network

Max Ethernet1G
2.5G ports1
vProN

Physical

Dimensions380 × 200 × 173 mm
Volume13.15L
Fan size120mm
Warranty2 yr

Power

PSU typeSFX
PSU750W

Discover More

mpcdb.com is the Mini PC Database, created to help users find, compare, and research compact computers in one place. The site is a useful resource for anyone looking for the best mini PC 2026 models, with organized information about specifications, performance, features, and pricing. As an Ultimate Mini PC Guide USA, mpcdb.com makes it easier to compare different mini PCs for home, office, business, media, and everyday use. Instead of searching across many websites, visitors can quickly review and evaluate multiple options in one database. mpcdb.com is built to simplify the process of choosing the right mini PC by presenting clear comparisons and helpful details for the USA market.