Lenovo ThinkSystem SR250 is an affordable, single-socket 1U rack server for small and medium businesses that need optimized performance and flexibility for future growth, along with enterprise-class reliability, management, and security.

The SR250 server offers a wide range of processors — from Intel Celeron to Intel Xeon E Series. With support for a memory capacity of up to 128 GB and internal storage of up to 32 TB, the SR250 server is an ideal choice for small- to medium-sized business, workgroups, distributed locations, and web-scale workloads.

Flexible and scalable internal storage configurations include up to ten 2.5-inch or four 3.5-inch drives with affordable software RAID or advanced hardware RAID protection and a wide selection of drive sizes and types, including NVMe PCIe SSDs, SAS/SATA SSDs, and SAS/SATA HDDs. Also, it features integrated dual-port 1 Gb Ethernet NIC and additional PCIe expansion slots for hardware RAID protection, network scalability, and external storage connectivity.

The next-generation Lenovo XClarity Controller, which is built into the SR250 server, provides advanced service processor control, monitoring, and alerting functions.

Lenovo ThinkSystem SR250
Form factor1U rack-mount.
ProcessorOne Intel Xeon E, Core i3, Pentium Gold, or Celeron processor.
ChipsetIntel C246.
Memory4 DIMM sockets (two memory channels with two DIMMs per channel). Support for ECC UDIMMs. Memory speed up to 2666 MHz.
Memory capacityXeon E Series: Up to 128 GB (4x 32 GB UDIMMs).Core i3, Pentium Gold, Celeron G Series: Up to 64 GB (4x 16 GB UDIMMs).
Memory protectionError correction code (ECC).
Drive bays4 LFF (3.5-inch) SATA Simple Swap drive bays.4 LFF (3.5-inch) SAS/SATA hot-swap drive bays.8 SFF (2.5-inch) SAS/SATA hot-swap drive bays.10 SFF (2.5-inch) hot-swap drive bays:10x 2.5″ SAS/SATA.8x 2.5″ SAS/SATA & 2x 2.5″ NVMe PCIe.
Drive types3.5-inch simple-swap drives:6 Gbps Nearline (NL) SATA HDDs up to 8 TB6 Gbps SATA SSDs up to 960 GB (2.5″ SSD in a 3.5″ tray)3.5-inch hot-swap drives:12 Gbps SAS HDDs up to 900 GB (2.5″ HDD in a 3.5″ tray)12 Gbps NL SAS HDDs up to 8 TB6 Gbps NL SATA HDDs up to 8 TB6 Gbps SATA SSDs up to 960 GB (2.5″ SSD in a 3.5″ tray)2.5-inch hot-swap drives:12 Gbps SAS HDDs up to 2.4 TB12 Gbps SAS HDD SEDs up to 300 GB12 Gbps NL SAS HDDs up to 2 TB6 Gbps NL SATA HDDs up to 2 TB6 Gbps SATA SSDs up to 960 GBU.2 NVMe PCIe 3.0 x4 SSDs up to 1 TB6 Gbps SATA up to 480 GBInternal M.2 SSDs:Note: Intermix of SAS, SATA, and NVMe PCIe drives is supported within a system, but not within a RAID array. NVMe PCIe SSDs do not support RAID controllers.
Internal storage capacityLFF models: Up to 72 TB using 4x 18 TB SAS or SATA HDDs.SFF models: 38.4TB using 10x 3.84TB SATA SSDs
Storage controllerOnboard 6 Gbps SATA:AHCI non-RAID.RAID 0/1/10/5 with Intel RSTe.12 Gbps SAS/6 Gbps SATA RAID:RAID 0/1/10/5/50 with RAID 530-8i or RAID 730-8i 1GB Cache.RAID 0/1/10/5/50/6/60 with RAID 730-8i 2GB Flash, RAID 930-8i 2GB Flash, or RAID 930-16i 4GB Flash.12 Gbps SAS/6 Gbps SATA non-RAID: 430-8i or 16i HBA.NVMe PCIe non-RAID: 1610-4P NVMe Switch Adapter.
Optical drive baysNone. Support for an external USB DVD RW Optical Disk Drive (See Optical drives).
Network interfaces2x Onboard 10/100/1000 Mb Ethernet RJ-45 ports (BCM5720 NIC).
I/O expansion slotsUp to three slots. Slot 3 is the fixed slot on the system planar, and the remaining slots depend on the riser cards installed. The slots are as follows:Slot 1: PCIe 3.0 x8; low profile (not present if the Slot 2 is x16)Slot 2: PCIe 3.0 x8 (x16 physical connector) or x16; full-height, half-lengthSlot 3: PCIe 3.0 x4 (supports an internal storage controller)
PortsFront: 1x VGA port (optional), 1x USB 3.1 Gen 1 port, and 1x USB 2.0 port with XClarity Controller access.Rear: 1x VGA port, 2x USB 3.1 Gen 2 ports, 1x DB-9 serial port, and 1x RJ-45 10/100/1000 Mb Ethernet systems management port.
CoolingFour non-hot-swap system fans.
Power supplyOne fixed 300 W Gold, or up to two redundant hot-swap 450 W Platinum AC power supplies.
VideoMatrox G200 with 16 MB memory integrated into the XClarity Controller. Maximum resolution is 1920×1200 at 60 Hz with 32 bits per pixel.
Hot-swap partsDrives (select models) and power supplies (select models).
Systems managementXClarity Controller (XCC) Standard, Advanced, or Enterprise (Pilot 4 chip), proactive platform alerts, XClarity Provisioning Manager, XClarity Essentials, XClarity Administrator, XClarity Integrators for VMware vCenter and Microsoft System Center, XClarity Energy Manager, Capacity Planner.
Security featuresPower-on password, administrator’s password, secure firmware updates, Trusted Platform Module (TPM) 1.2 or 2.0 (configurable UEFI setting). Optional lockable front bezel. Optional Nationz TPM (available only in PRC). Optional Lenovo Business Vantage security software (available only in PRC).
Operating systemsMicrosoft Windows Server, Red Hat Enterprise Linux, SUSE Linux Enterprise Server, VMware ESXi. See the Operating systems section for specifics.
WarrantyOne-year (7Y52) or three-year (7Y51, 7Y72, and 7Y73) customer-replaceable unit (CRU) and onsite limited warranty with 9×5 Next Business Day Parts Delivered.
Service and supportOptional service upgrades are available through Lenovo Services: 2-hour or 4-hour response time, 6-hour or 24-hour committed service repair (select areas), warranty extension up to 5 years, 1-year or 2-year post-warranty extensions, Premier Support, YourDrive YourData, Enterprise Software Support, and Basic Hardware Installation Services.
DimensionsWidth: 435 mm (17.1 in.), height: 43 mm (1.7 in.), depth: 545 mm (21.5 in.). See Physical specifications for details.
WeightBase configuration: 9.1 kg (20.1 lb), maximum: 12.3 kg (27.1 lb)