HPE ProLiant ML350 Gen9 vs Lenovo ThinkSystem ST550
Side-by-side specifications from the vendors' own documents. The HPE ProLiant ML350 Gen9 is a premium 5U dual-socket enterprise tower server designed for corporate branch offices and remote data centers requiring high availability and extensive storage expansion. The ThinkSystem ST550 was Lenovo's versatile 4U two-socket tower server engineered for branch offices, retail locations, distributed enterprises, and remote business environments without dedicated server rooms.
| HPE ProLiant ML350 Gen9 | Lenovo ThinkSystem ST550 | |
|---|---|---|
| Brand | HPE | Lenovo |
| Status | end-of-sale | end-of-sale |
| Released | Sep 2014 | Jul 2017 |
| Form factor | tower | tower |
| Cpu sockets | 2 | 2 |
| Cpu platform | Intel Xeon E5-2600 v3 / v4 series up to 22 cores per socket | Intel Xeon Scalable 1st Gen (Skylake-SP) and 2nd Gen (Cascade Lake-SP) up to 125W TDP |
| Memory slots | 24 | 12 |
| Memory type | DDR4-2133 / DDR4-2400 SmartMemory RDIMM / LRDIMM | DDR4-2666 / DDR4-2933 RDIMM / LRDIMM |
| Memory max (GB) | 3,072 | 768 |
| Drive bays | Up to 48 SFF or 24 LFF hot-plug SAS/SATA/NVMe | Up to 16x 2.5-inch SFF hot-swap bays (supporting up to 4 AnyBay NVMe bays) or 8x 3.5-inch LFF bays |
| Pcie slots | Up to 9 PCIe 3.0 expansion slots | Up to 6 PCIe 3.0 slots |
| Power supply | HPE 500W, 800W, or 1400W Flex Slot Platinum hot-plug | Fixed 450W PSU or dual redundant 550W / 750W / 1100W AC 80 PLUS Platinum hot-swap PSUs |
| Gpu support | — | Up to 2 single-wide or 1 double-wide GPU adapter |
| Network onboard | — | Dual integrated 1GbE RJ-45 ports plus dedicated 1GbE XClarity management port |
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