Platform: Lenovo ST550 (Skylake/Cascade Lake (Xeon Scalable Gen1/Gen2))
Form factor
tower
CPU socket
LGA3647 × 2
RAM max
3072 GB DDR4 · RDIMM, LRDIMM, 3DS RDIMM
DIMM slots
24 (RDIMM, LRDIMM, 3DS RDIMM)
Noise tier
5/5, Datacenter-only (>65 dB)
Idle power
85W · ~$89/yr · ~$268/3yr to run (idle @ )
PCIe
Gen 3 · 7 slots
Management
XClarity Controller (XCC)
Max PSU
1100W
Released
2017
Fit Breakdown (Balanced lens)
Cores
50
RAM
50
Storage
50
Deal:No estimate available
Fit = suits your use case · Value = fit per dollar · Deal = price vs typical market.
Outlook · Late life, Near the price floor. Weigh idle power draw and parts availability.
Price context
At $398.00, this listing is — no sold comps yet —, and 75% below the typical asking price (~$1,592.98 across 10 live ST550 listings). Sold = what it's worth; asking = what sellers want now (usually higher).