The Lenovo ThinkSystem ST45 V3 is a tower server powered by an AMD EPYC 4124P processor with four cores and eight threads, a base frequency of 3.8 GHz, boost speeds of up to 5.1 GHz, and 16 MB of cache. It features unbuffered DDR5 ECC memory running at 5600 MT/s, with support for expansion up to 64 GB. It includes a 2 TB HDD and SATA/AHCI interfaces.

Networking is provided through an integrated Gigabit Ethernet 1000BASE-T port with an RJ-45 connector. The front panel has four USB 3.2 Gen 1 ports, one USB-C 3.2 Gen 1 port, a microphone input, and a headphone/microphone connector. The rear panel features four USB 2.0 ports, HDMI, two DisplayPort 1.4 ports, and an audio output.

• Type: Tower server
• Processor: AMD EPYC 4124P, 4 cores, 8 threads
• Processor frequency: 3.8 GHz, up to 5.1 GHz
• Cache: 16 MB
• Processor power consumption: 65 W
• RAM: 16 GB DDR5 ECC, unbuffered, 5600 MT/s
• Maximum RAM: 64 GB
• Hard drive: 1 × 2 TB HDD
• Drive bays: 2 × 3.5"
• Drive controller: IOB SATA/AHCI
• Network ports: 1 × Gigabit Ethernet 1000BASE-T (RJ-45)
• Front ports: 4 × USB 3.2 Gen 1, 1 × USB-C 3.2 Gen 1, microphone input, headphone/microphone connector
• Rear ports: 4 × USB 2.0, 1 × HDMI, 2 × DisplayPort 1.4, 1 × audio output, 1 × Gigabit Ethernet
• Power supply: Fixed 500 W Platinum
• Fans: 2 fixed system fans
• Operating system: No operating system
• Supported operating systems: Microsoft Windows Server, Red Hat Enterprise Linux, SUSE, Ubuntu, Windows 11
• Management: Lenovo XClarity Provisioning Manager Lite for system setup and firmware updates via USB
• Additional features: Mono amplifier with a speaker mounted inside the front bezel