Lenovo ThinkCentre M75s

A small-form-factor business desktop on the AMD PRO 560 chipset, built around AMD Athlon and Ryzen 3/5 desktop processors (including PRO variants).

Memory

Support: Up to three drives: 1x 2.5"/3.5" HDD + 1x 2.5" HDD + 1x M.2 SSD (2.5" HDD up to 1 TB each, 3.5" HDD up to 2 TB, M.2 SSD up to 1 TB)
2.5" SATA HDD: SATA 6 Gb/s, 7.2K RPM
3.5" SATA HDD: SATA 6 Gb/s, 7.2K RPM
M.2 2242 SSD: PCIe NVMe, PCIe 3.0 x2
M.2 2280 SSD: PCIe NVMe, PCIe 3.0 x4; optional Opal-encrypted variant
RAID: RAID 0/1 for HDDs (RAID preset only via special-bid model)
Optical: Optional slim (9.0 mm) DVD-ROM or DVD burner (DVD±RW), SATA 1.5 Gb/s
Card reader: Optional 7-in-1 card reader

Integrated: AMD Radeon R5/R7 Graphics or Radeon Vega 3/8/11 / RX Vega 11 Graphics (varies by CPU), shared memory, 2x DisplayPort + 1x VGA, max 4096x2160@60Hz (DP)
Discrete option: AMD Radeon 520, 2 GB GDDR5
Monitor support: Up to 3 independent displays via onboard ports (VGA + 2x DisplayPort); more via discrete graphics

Ethernet (onboard): Gigabit Ethernet, Realtek RTL8111EPV, 1x RJ-45, Wake-on-LAN
Ethernet (optional): No optional Ethernet
Wi-Fi/Bluetooth: Optional M.2 card: Realtek RTL8822CE 802.11ac 2x2 + BT 5.0; Qualcomm QCA6174A 802.11ac 2x2 + BT 4.2; Intel Wireless-AC 9260 802.11ac 2x2 + BT 5.0

Front: 2x USB 3.1 Gen 1, 2x USB 3.1 Gen 2, 1x headphone (3.5mm), 1x microphone (3.5mm); optional card reader
Rear: 2x USB 2.0, 2x USB 3.1 Gen 1, 1x VGA, 2x DisplayPort, 1x serial (9-pin), 2x PS/2, 1x Ethernet (RJ-45), 1x line-in (3.5mm), 1x line-out (3.5mm), 1x microphone (3.5mm)
Optional rear: 2x USB 2.0 (via 2-port adapter); 1x serial; 1x parallel

Form factor: SFF (8.4L)
Dimensions: 92.5 x 290.5 x 343.5 mm (3.6 x 11.4 x 13.5 in), W x D x H
Weight: 6.0 kg (13.2 lbs)
Case color: Black
Bays: 1x 2.5" disk bay (bay comes with disk), 1x 3.5" disk bay, 1x slim ODD bay
Stand: Optional vertical stand
Audio: High Definition Audio, Realtek ALC662 codec; optional single 1 W speaker
Security: Discrete TPM 2.0 (TCG certified); Kensington Security Slot; Padlock Loop; optional Smart Cable Clip; optional chassis intrusion switch; optional touch-style fingerprint reader on mouse; BIOS admin/power-on/hard-disk password, boot sequence control, boot without keyboard/mouse, Smart USB Protection, individual USB port disablement
Other: Optional dust filter; toolless cover, disk, optical and extension-card assembly/removal

Supported: Windows 10 Home 64, Windows 10 Pro 64, Windows 10 IoT Enterprise, Ubuntu Linux, No operating system