Enterprise enabled, ROBO ready The Lenovo ThinkSystem ST550 is a scalable 4U tower server that features powerful Intel® Xeon® processor Scalable family CPUs. It provides the performance and reliability you expect from the data center, but optimized for office environments, with physical security and whisper-quiet operation. Its compact footprint uses 37 percent less space than its predecessor*, making it ideal for under-desk, deskside, or rack-mount use. ST550 is ideal for email/file/print and web serving, IT infrastructure, virtualization, VDI, and private cloud.
Compact, secure, flexible ST550 supports up to 96.4TB of internal storage capacity, and Lenovo AnyBay technology enables the mixing and matching of storage types (U.2/SAS/SATA) in the same bays. Up to 6x PCIe adapter slots and multiple hardware and software RAID options offer the flexibility you need for NICs, GPUs, and other adapters.
Physical and software security technologies, including lockable security bezel, Kensington lock slot, chassis intrusion switch, and TPM 1.2/2.0, are ideal for remote locations without the protection of a data center. ST550 also offers money-saving features, such as highly energy-efficient 80 PLUS Platinum and Titanium hot-swap PSUs, continuous operation up to 45°C, and easy centralized management via XClarity software.
High-performance, reliable, manageable ST550 features more processor cores, memory, and I/O bandwidth than previous generations. It also provides more memory channels; 12Gb SAS interconnects; and support for HDD, SSD, NVMe, and M.2 drives; as well as high-performance GPUs—all at a lower price than previous generations.
Faster processors and memory, more cores, and support for NVMe and M.2 drives contribute to significantly better performance than the previous generation. In addition, optional NVMe drives provide ultra-fast storage that can be tiered for greater application performance. Combining enterprise-class RAS features and shared components across the server portfolio increases reliability, promotes greater peace of mind, and reduces TCO.
XClarity Controller is the management hardware engine inside every ThinkSystem server, and XClarity Administrator centralizes management of your ThinkSystem and ThinkAgile infrastructure. With Redfish APIs and XClarity integrators you can easily integrate the Lenovo infrastructure into higher-level IT applications. More information: Processor | Processor family | Intel Xeon Silver | ![](/p.gif) | Processor manufacturer | Intel | ![](/p.gif) | Processor model | 4208 | ![](/p.gif) | Processor frequency | 2.1 GHz | ![](/p.gif) | Processor generation | 2nd Generation Intel® Xeon® Scalable | ![](/p.gif) | Processor boost frequency | 3.2 GHz | ![](/p.gif) | Processor cores | 8 | ![](/p.gif) | Processor cache | 11 MB | ![](/p.gif) | Number of processors installed | 1 | ![](/p.gif) | Thermal Design Power (TDP) | 85 W | ![](/p.gif) | Processor socket | LGA 3647 (Socket P) | ![](/p.gif) | Processor lithography | 14 nm | ![](/p.gif) | Processor threads | 16 | ![](/p.gif) | Processor operating modes | 64-bit | ![](/p.gif) | Processor codename | Cascade Lake | ![](/p.gif) | Tcase | 78 °C | ![](/p.gif) | Maximum internal memory supported by processor | 1024 GB | ![](/p.gif) | Memory types supported by processor | DDR4-SDRAM | ![](/p.gif) | Memory clock speeds supported by processor | 2400 MHz | ![](/p.gif) | Execute Disable Bit | Yes | ![](/p.gif) | Maximum number of PCI Express lanes | 48 | ![](/p.gif) | Processor package size | 76.0 x 56.5 mm | ![](/p.gif) | Supported instruction sets | AVX-512 | ![](/p.gif) | Scalability | 2S | Design | Chassis type | Tower | Graphics | On-board graphics card model | Not available | Sustainability | Sustainability certificates | ENERGY STAR | Processor special features | Enhanced Intel SpeedStep Technology | Yes | ![](/p.gif) | Intel Virtualization Technology for Directed I/O (VT-d) | Yes | ![](/p.gif) | Intel® Hyper Threading Technology (Intel® HT Technology) | Yes | ![](/p.gif) | Intel® Turbo Boost Technology | 2.0 | ![](/p.gif) | Intel® AES New Instructions (Intel® AES-NI) | Yes | ![](/p.gif) | Intel Trusted Execution Technology | Yes | ![](/p.gif) | Intel VT-x with Extended Page Tables (EPT) | Yes | ![](/p.gif) | Intel TSX-NI | Yes | ![](/p.gif) | Intel 64 | Yes | ![](/p.gif) | Intel Virtualization Technology (VT-x) | Yes | ![](/p.gif) | Processor ARK ID | 193390 | Memory | Internal memory | 16 GB | ![](/p.gif) | Internal memory type | DDR4-SDRAM | ![](/p.gif) | Maximum internal memory | 768 GB | ![](/p.gif) | Memory slots | 12 | ![](/p.gif) | ECC | Yes | ![](/p.gif) | Memory clock speed | 2666 MHz | ![](/p.gif) | Memory layout (slots x size) | 1 x 16 GB | Expansion slots | PCI Express x8 (Gen 3.x) slots | 2 | ![](/p.gif) | PCI Express x16 (Gen 3.x) slots | 2 | ![](/p.gif) | PCI Express slots version | 3.0 | Power | Redundant power supply (RPS) support | Yes | ![](/p.gif) | Power supply | 1100 W | Weight & dimensions | Width | 176 mm | ![](/p.gif) | Depth | 670 mm | Network | Ethernet LAN | Yes | ![](/p.gif) | Cabling technology | 10/100/1000Base-T(X) | Ports & interfaces | USB 2.0 ports quantity | 3 | ![](/p.gif) | USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity | 3 | ![](/p.gif) | VGA (D-Sub) ports quantity | 1 | Software | Compatible operating systems | Microsoft Windows Server 2016/2012 R2 Red Hat Enterprise Linux 6/7 x64 Linux Enterprise Server 12 SP2/11 SP4 VMware vSphere (ESXi) 6.5/6.0 U3 | Storage | RAID support | Yes | ![](/p.gif) | HDD interface | Serial ATA, Serial Attached SCSI (SAS) | ![](/p.gif) | RAID levels | 0, 1, 5, 6, 10, 50, 60 | ![](/p.gif) | Supported RAID controllers | 930-8i | Performance | Trusted Platform Module (TPM) | Yes | ![](/p.gif) | Trusted Platform Module (TPM) version | 2.0 |
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