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Chassis ThinkSystem SR550 8x2.5inch - 1 x 750W Power Supply 8x HDD HotSwap
ThinkSystem mainboard SR550
ThinkSystem RAID 540-8i PCIe Gen4 12Gb Adapter
1 x Intel® Xeon® Silver 4210R Processor 13.75M Cache, 2.40 GHz
1 x Bộ Nhớ RAM DDR4 16GB PC4-3200MHz ECC Registered DIMMs
1 x Heatsink for ThinkSystem SR550


Components	Specification
Form factor	2U rack-mount.
Processor	Up to two Intel Xeon Bronze, Silver, Gold, or Platinum processors: Up to 20 cores (2.0 GHz core speeds) Up to 3.6 GHz core speeds (4 cores) Two UPI links up to 10.4 GT/s each Up to 27.5 MB cache Up to 2666 MHz memory speed
Chipset	Intel C622.
Memory	Up to 12 DIMM sockets (6 DIMMs per processor; six memory channels per processor with one DIMM per channel). Support for RDIMMs and LRDIMMs. Memory types cannot be intermixed. Memory speed up to 2666 MHz.
Memory capacity	With RDIMMs: Up to 384 GB with 12x 32 GB RDIMMs and two processors. With LRDIMMs: Up to 768 GB with 12x 64 GB LRDIMMs and two processors.
Memory protection	Error correction code (ECC), SDDC (for x4-based memory DIMMs), ADDDC (for x4-based memory DIMMs, requires Intel Xeon Gold or Platinum processors), memory mirroring, memory rank sparing, patrol scrubbing, and demand scrubbing.
Drive bays	8 LFF SATA Simple Swap drive bays 8 LFF SAS/SATA hot-swap drive bays 12 LFF SAS/SATA hot-swap drive bays Up to 16 SFF hot-swap drive bays: 8x 2.5" SAS/SATA + 8x 2.5" SAS/SATA
Drive types	2.5-inch hot-swap drives: 12 Gbps SAS HDDs up to 2.4 TB 12 Gbps Nearline (NL) SAS HDDs up to 2 TB 12 Gbps SAS HDD SEDs up to 600 GB 12 Gbps SAS SSDs up to 7.68 TB 6 Gbps NL SATA HDDs up to 2 TB 6 Gbps SATA SSDs up to 3.84 TB 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 12 TB 12 Gbps NL SAS HDD SEDs up to 4 TB 6 Gbps NL SATA HDDs up to 12 TB 6 Gbps SATA SSDs up to 3.84 TB (2.5" SSD in a 3.5" tray) Internal M.2 SSDs: 6 Gbps SATA up to 128 GB Intermix of SAS/SATA HDDs/SSDs is supported within a system, but not within a RAID array.
Internal storage capacity	3.5-inch models: Up to 144 TB with 12x 12 TB 3.5" SAS/SATA HDDs 2.5-inch models: Up to 122.8 TB with 16x 7.68 TB 2.5" SAS SSDs
Storage controller	6 Gbps SATA: Onboard SATA AHCI (non-RAID). RAID 0/1/10/5 with the onboard SATA RAID (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 (China only). RAID 0/1/10/5/50/6/60 with RAID 930-8i 2GB Flash or 16i 4 GB Flash. 12 Gbps SAS/6 Gbps SATA non-RAID: 430-8i or 16i HBA.
Optical drive bays	None. Support for an external USB DVD RW Optical Disk Drive (See Optical drives).
Network interfaces	2x Integrated 1 GbE RJ-45 ports (no 10/100 Mb support) Onboard LOM slot for two additional 2x 1/10 Gb Ethernet ports: 2x 1 GbE RJ-45 ports (no 10/100 Mb support) 2x 10 GbE RJ-45 ports (no 10/100 Mb support) 2x 10 GbE SFP+ ports (no 10/100 Mb support) Optional Mezzanine LOM (ML2) slot for dual-port 10 GbE cards with SFP+ or RJ-45 connectors. 1x RJ-45 10/100/1000 Mb Ethernet systems management port.
I/O expansion slots	Up to six slots. Slot 4 is the fixed slots on the system planar, and the remaining slots depend on the riser cards installed. The slots are as follows: Slot 1: PCIe 3.0 x16 or PCIe 3.0 x8; full-height, half-length (PCIe x16 slot is double-wide) Slot 2: PCIe 3.0 x8; full-height, half-length (not present if the slot 1 is PCIe x16) Slot 3: PCIe 3.0 x8 or ML2 x8; full-height, half-length Slot 4: PCIe 3.0 x8; low profile (vertical slot on system planar) Slot 5: PCIe 3.0 x16; full-height, half-length Slot 6: PCIe 3.0 x8; full-height, half-length Slot 5 requires the second processor to be installed.
Ports	Front: 1x USB 2.0 port with XClarity Controller access. 1x USB 3.0 port. 1x DB-15 VGA port (optional). Rear: 2x USB 3.0 ports and 1x DB-15 VGA port. Optional 1x DB-9 serial port.
Cooling	Three (one processor) or four (two processors) non-hot-swap system fans with N+1 redundancy.
Power supply	Up to two redundant hot-swap 550 W or 750 W (100 - 240 V) High Efficiency Platinum or 750 W (200 - 240 V) High Efficiency Titanium AC power supplies. HVDC support (China only).
Video	Matrox G200 with 16 MB memory integrated into the XClarity Controller. Maximum resolution is 1920x1200 at 60 Hz with 16 bits per pixel.
Hot-swap parts	Drives (select models) and power supplies.
Systems management	XClarity 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 features	Power-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 Trusted Cryptographic Module (TCM) (available only in China). Optional Lenovo Business Vantage security software (available only in China).
Operating systems	Microsoft Windows Server 2012 R2 and 2016; Red Hat Enterprise Linux 6 (x64) and 7; SUSE Linux Enterprise Server 11 (x64) and 12; VMware vSphere (ESXi) 6.0 and 6.5.
Warranty	One-year (7X03) or three-year (7X04) customer-replaceable unit (CRU) and onsite limited warranty with 9x5 Next Business Day Parts Delivered.
Service and support	Optional service upgrades are available through Lenovo Services: 2-hour or 4-hour response time, 6-hour or 24-hour committed service repair, warranty extension up to 5 years, 1-year or 2-year post-warranty extensions, YourDrive Your Data, Enterprise Server Software Support, and Basic Hardware Installation Services.
Dimensions	Height: 87 mm (3.4 in), width: 445 mm (17.5 in), depth: 720 mm (28.3 in)
Weight	Minimum configuration: 19 kg (41.9 lb), maximum: 26 kg (57.3 lb)