Lenovo ThinkCentre neo 55s Gen 6
The AMD sibling of the neo 50s Gen 6, an 8.2-litre SFF business desktop built on a soldered AMD SoC platform (Ryzen 5/7 200 series or Ryzen AI 5/7 300 series), up to 64 GB DDR5-5600 SO-DIMM, up to two M.2 SSDs plus a 3.5" HDD bay, and optional NVIDIA GeForce RTX 3050 or Radeon RX 6400 discrete graphics.
Memory
- Slots
- Two DDR5 SO-DIMM slots, dual-channel capable
- Type
- DDR5-5600
- Max
- Up to 64 GB, based on Lenovo's tested memory offerings
Storage
- Support
- Up to three drives: 1 × 3.5" HDD (up to 2 TB) + 2 × M.2 SSD (up to 1 TB each); 3.5" HDD screw and grommet kit, SATA and SATA power cable optional or bundled with the HDD
- 3.5" bay
- SATA 6 Gb/s, 7.2K rpm
- M.2
- M.2 2280 SSD, PCIe NVMe PCIe 4.0 x4, without or with Opal 2.0
- Optical
- None
- Card reader
- No card reader
Graphics
- Integrated
- AMD Radeon 740M / 760M / 780M / 820M / 860M (by processor), shared memory; up to 4096×2160@60 Hz (HDMI and DP)
- Discrete option 1
- NVIDIA GeForce RTX 3050, 6 GB GDDR6, up to 7680×4320@60 Hz (HDMI) / 7680×4320@120 Hz (DP), 1 × DP 1.4 + 1 × HDMI 2.1 FRL, DirectX 12 / OpenGL 4.6
- Discrete option 2
- AMD Radeon RX 6400, 4 GB GDDR6, up to 7680×4320@60 Hz (HDMI and DP), 1 × DP 1.4 + 1 × HDMI 2.1 FRL, DirectX 12 / OpenGL 4.6
- Monitors
- Up to 2 independent displays via onboard ports (1 × DP + 1 × HDMI); more via discrete graphics
Expansion
- Slot 1
- PCIe 4.0 x16, low-profile, length ≤ 155 mm, height ≤ 70 mm
- M.2
- Three M.2 slots (one for WLAN, two for SSD)
Networking
- Onboard
- Gigabit Ethernet, Realtek RTL8111FP, 1 × RJ-45, supports DASH and Wake-on-LAN; or Realtek RTL8111K, 1 × RJ-45
- WLAN + Bluetooth
- MediaTek Wi-Fi 6 MT7920, 802.11ax 2x2 + Bluetooth 5.2, M.2 card; Realtek Wi-Fi 6 RTL8852BE, 802.11ax dual-band 2x2 + Bluetooth 5.3, M.2 card; MediaTek Wi-Fi 7 MT7925, 802.11be 2x2 + Bluetooth 5.4, M.2 card; Realtek Wi-Fi 7 RTL8922AE, 802.11be 2x2 + Bluetooth 5.4 (6.0 hardware ready), M.2 card; or no WLAN/Bluetooth
Power
- Supply options
- 200 W fixed, 90% efficient; or 260 W fixed, 90% efficient; both 100-240 V 50-60 Hz
Ports
- Front
- 1 × USB-C (USB 5 Gbps / USB 3.2 Gen 1), 15 W charging; 2 × USB-A (USB 5 Gbps / USB 3.2 Gen 1); 1 × headphone/microphone combo jack (3.5 mm); 1 × microphone (3.5 mm)
- Rear
- 2 × USB-A (Hi-Speed USB / USB 2.0), 2 × USB-A (USB 5 Gbps / USB 3.2 Gen 1, one Smart Power On), 1 × HDMI 2.1 TMDS, 1 × DisplayPort 1.4, 1 × Ethernet (RJ-45), 1 × line-out (3.5 mm)
- Optional rear
- 2 × USB-A (USB 5 Gbps / USB 3.2 Gen 1, special bid only), 1 × parallel, 1 × serial, 1 × 2nd serial
Physical
- Form factor
- SFF (8.2L)
- Dimensions (W×D×H)
- 89 × 274.8 × 336 mm (3.5 × 10.83 × 13.24 in)
- Packaging dimensions
- 195 × 395 × 530 mm (7.7 × 15.6 × 20.9 in)
- Weight
- Around 4.33 kg (9.55 lb)
- Packaging weight
- Around 5.24 kg (11.55 lb), all models
- Case color
- Raven black
- Bays
- 1 × 3.5" disk bay
- Stand
- Optional vertical stand, or no stand
- Security
- Discrete TPM 2.0, TCG and FIPS 140-2 certified; Kensington Security Slot; optional coded lock and Smart Cable Clip; optional chassis intrusion switch; optional touch-style fingerprint reader built into the mouse; BIOS: Absolute Persistence module, administrator password, boot sequence control, boot without keyboard/mouse, configuration change detection, cover tamper detection, individual USB port disablement, hard disk / power-on passwords, Smart USB protection, Secure Boot, secure wipe
Management
- Remote
- DASH (with RTL8111FP Ethernet) or Non-DASH (with RTL8111K Ethernet)
Operating systems
- Preloads
- Windows 11 Pro, Windows 11 Home, Windows 11 Home Single Language, Ubuntu Linux, or no preload operating system
Processors
- AMD Ryzen 5 220
- AMD Ryzen 5 230
- AMD Ryzen 7 250
- AMD Ryzen AI 5 330
- AMD Ryzen AI 7 350