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Dell EMC PowerEdge R550Technical SpecificationsPart Number: E75S SeriesRegulatory Type: E75S001Dec. 2021Rev. A01

Notes, cautions, and warningsNOTE: A NOTE indicates important information that helps you make better use of your product.CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoidthe problem.WARNING: A WARNING indicates a potential for property damage, personal injury, or death. 2021 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Othertrademarks may be trademarks of their respective owners.

ContentsChapter 1: Technical specifications. 4Chassis dimensions.4Chassis weight. 5Processor specifications. 5PSU specifications. 5Supported operating systems.6Cooling fan specifications.6System battery specifications. 7Expansion card riser specifications. 7Memory specifications.7Storage controller specifications. 7Drives.8Ports and connectors specifications.8USB ports specifications.8NIC port specifications. 8Serial connector specifications.8VGA ports specifications.8Video specifications. 9Environmental specifications. 9Particulate and gaseous contamination specifications. 10Thermal restriction matrix.11Contents3

1Technical specificationsThe technical and environmental specifications of your system are outlined in this section.Topics: Chassis dimensionsChassis weightProcessor specificationsPSU specificationsSupported operating systemsCooling fan specificationsSystem battery specificationsExpansion card riser specificationsMemory specificationsStorage controller specificationsDrivesPorts and connectors specificationsEnvironmental specificationsChassis dimensionsFigure 1. Chassis dimensions4Technical specifications

Table 1. PowerEdge R550 chassis dimensionsDrivesXaXbYZaZbZc16drives482.0 mm(18.97inches)434.0 mm(17.08inches)86.8 mm(3.41inches)22.0 mm (0.86 inches)Without bezel 35.84 mm(1.41 inches) With bezel675.04 mm (26.57 inches)Ear to L bracket housing650.24 mm (25.6 inches)Ear to PSU surface685.78 mm (26.99inches)Ear to PSUhandle without velcrostrap8 drivesNOTE: Zb is the nominal rear wall external surface where the system board I/O connectors reside.Chassis weightTable 2. PowerEdge R550 chassis weightSystem configurationMaximum weight (with all drives/SSDs/bezel)16 x 2.5-inch21.94 kg (48.36 lb)8 x 2.5-inch20.44 kg (45.06 lb)8 x 3.5-inch24.80 kg (54.67 lb)Processor specificationsTable 3. PowerEdge R550 processor specificationsSupported processorNumber of processors supported3 rd Generation Intel Xeon Scalable processors with up to 24coresUp to twoPSU specificationsThe PowerEdge R550 system supports up to two AC or DC power supply units (PSUs).Table 4. PSU specificationsPSU1100 W DCClassNA800 WPlatinumMixed ModeNA600 WPlatinumMixed ModeNAHeatFrequencydissipation(maximum)Voltage4265 BTU/hrNA3000 BTU/hrACDCCurrentHigh line200–240VLow line100–120 V-48–(-60) VNANA1100 W27 A50/60 Hz100 - 240 VAC,autoranging800 W800 WNA9.2 - 4.7 A3000 BTU/hrNA240 V DC,autorangingNANA800 W3.8 A2250 BTU/hr50/60 Hz100 - 240 VAC,autoranging600 W600 WNA7.1 - 3.6 A2250 BTU/hrNA240 V DC,autorangingNANA600 W2.9 ANOTE: This system is also designed to connect to the IT power systems with a phase-to-phase voltage not exceeding 240V.Technical specifications5

NOTE: Heat dissipation is calculated using the PSU wattage rating.NOTE: When selecting or upgrading the system configuration, to ensure optimum power utilization, verify the systempower consumption with the Dell Energy Smart Solution Advisor available at Dell.com/ESSA.Supported operating systemsThe PowerEdge R550 system supports the following operating systems: Canonical Ubuntu Server LTSCitrix HypervisorMicrosoft Windows Server with Hyper-VRed Hat Enterprise LinuxSUSE Linux Enterprise ServerVMware ESXiFor more information, go to www.dell.com/ossupport.Cooling fan specificationsThe PowerEdge R550 system supports up to five standard (STD) cooling fans.Table 5. Cooling fan specificationsFan typeAbbreviationAlso known asLabel colorStandardfanSTDSTDNo labelHPRSilverHighHPR SLVRperformance fan (Silvergrade)Label imageNOTE: New cooling fans come withthe High-Performance Silver Grade label.While the older cooling fans have theHigh-Performance label.Figure 2. High performance fan6Technical specifications

System battery specificationsThe PowerEdge R550 system supports CR 2032 3.0-V lithium coin cell system battery.Expansion card riser specificationsThe PowerEdge R550 supports up to four PCI express (PCIe) slots (3 Gen4 and 1 Gen3 slots) on the system board.Table 6. Expansion card slots supported on the system boardPCIe slotExpansion card riserProcessorconnectionHeightLengthSlot widthSlot 1N/AProcessor 1Low ProfileHalf Lengthx16Slot 2N/APCHLow ProfileHalf Lengthx8 (x4-Link)Slot 5N/AProcessor 2Low ProfileHalf Lengthx16Slot 6N/AProcessor 2Low ProfileHalf Lengthx16Memory specificationsThe PowerEdge R550 system supports the following memory specifications for optimized operation.Table 7. Memory specificationsSingle processorDIMM typeRDIMMDIMM rankDIMMcapacitySingle rank8 GBDual rankDual processorsMaximum DIMMcapacityMinimumDIMMcapacityMaximum DIMMcapacity8 GB64 GB16 GB128 GB16 GB16 GB128 GB32 GB256 GB32 GB32 GB256 GB64 GB512 GB64 GB64 GB512 GB128 GB1 TBMinimum DIMMcapacityTable 8. Memory module socketsMemory module socketsSpeed16, 288-pin2933 MT/sStorage controller specificationsThe PowerEdge R550 system supports the following controller cards:Table 9. Storage controller cards for the systemInternal controllersExternal controllers PERC H840 HBA355eS150PERC H345PERC H355PERC H745PERC H755HBA355iTechnical specifications7

Table 9. Storage controller cards for the systemInternal controllersExternal controllers Boot Optimized Storage Subsystem (BOSS-S2): HWRAID2 x M.2 SSDs 240 GB or 480 GBDrivesThe PowerEdge R550 system supports: 16 x 2.5-inch SAS/SATA HDD/SSD. 8 x 2.5-inch SAS/SATA HDD/SSD. 8 x 3.5-inch SAS/SATA HDD/SSD.Ports and connectors specificationsUSB ports specificationsTable 10. PowerEdge R550 USB specificationsFrontUSB port typeUSB 2.0compliant portRearNo. of portsUSB port typeInternal (Optional)No. of portsOneUSB 2.0compliant portOneiDRAC Direct port One(Micro-AB USB2.0-compliantport)USB 3.0compliantports USB 3.0compliant portOneUSB port typeInternal USB 3.0compliant portNo. of portsOneNOTE: The micro-AB USB 2.0 compliant port can only be used as an iDRAC Direct or a management port.NIC port specificationsThe PowerEdge R550 system supports up to two 10/100/1000 Mbps Network Interface Controller (NIC) ports embedded onthe LAN on Motherboard (LOM) and integrated on the optional Open Compute Project (OCP) cards.Table 11. NIC port specification for the systemFeatureSpecificationsLOM card1 GbE x 2OCP card (OCP 3.0)1 GbE x 4, 10 GbE x 2, 25 GbE x 2Serial connector specificationsThe PowerEdge R550 system supports one optional card type serial connector on rear of the system, which is a 9-pinconnector, Data Terminal Equipment (DTE), 16550-compliant .The process to install the optional serial connector card is similar to an expansion card filler bracket.VGA ports specificationsThe PowerEdge R550 system supports two DB-15 VGA ports, one each on the front and rear panels of the system.8Technical specifications

Video specificationsThe PowerEdge R550 system supports integrated Matrox G200 graphics controller with 16 MB of video frame buffer.Table 12. Supported video resolution options for the systemResolutionRefresh rate (Hz)Color depth (bits)1024 x 768608, 16, 321280 x 800608, 16, 321280 x 1024608, 16, 321360 x 768608, 16, 321440 x 900608, 16, 321600 x 900608, 16, 321600 x 1200608, 16, 321680 x 1050608, 16, 321920 x 1080608, 16, 321920 x 1200608, 16, 32Environmental specificationsNOTE: For additional information about environmental certifications, refer to the Product Environmental Datasheet locatedwith the Documentation Regulatory Information on www.dell.com/support/home.Table 13. Operational climatic range category A2TemperatureSpecificationsAllowable continuous operationsTemperature ranges for altitudes 900 m ( 2953 ft)10–35 C (50–95 F) with no direct sunlight on the equipmentHumidity percent ranges (non-condensing at alltimes)8% RH with -12 C minimum dew point to 80% RH with 21 C (69.8 F)maximum dew pointOperational altitude de-ratingMaximum temperature is reduced by 1 C/300 m (1.8 F/984 Ft) above 900m (2953 Ft)Table 14. Operational climatic range category A3TemperatureSpecificationsAllowable continuous operationsTemperature ranges for altitudes 900 m ( 2953 ft)5–40 C (41–104 F) with no direct sunlight on the equipmentHumidity percent ranges (non-condensing at alltimes)8% RH with -12 C minimum dew point to 85% RH with 24 C (75.2 F)maximum dew pointOperational altitude de-ratingMaximum temperature is reduced by 1 C/175 m (1.8 F/574 Ft) above 900m (2953 Ft)Table 15. Operational climatic range category A4TemperatureSpecificationsAllowable continuous operationsTechnical specifications9

Table 15. Operational climatic range category A4 (continued)TemperatureSpecificationsTemperature ranges for altitudes 900 m ( 2953 ft)5–45 C (41–113 F) with no direct sunlight on the equipmentHumidity percent ranges (non-condensing at alltimes)8% RH with -12 C minimum dew point to 90% RH with 24 C (75.2 F)maximum dew pointOperational altitude de-ratingMaximum temperature is reduced by 1 C/125 m (1.8 F/410 Ft) above 900m (2953 Ft)Table 16. Shared requirements across all categoriesTemperatureSpecificationsAllowable continuous operationsMaximum temperature gradient (applies to bothoperation and non-operation)20 C in an hour* (36 F in an hour) and 5 C in 15 minutes (9 F in 15minutes), 5 C in an hour* (9 F in an hour) for tapeNOTE: * - Per ASHRAE thermal guidelines for tape hardware, these arenot instantaneous rates of temperature change.Non-operational temperature limits-40 to 65 C (-104 to 149 F)Non-operational humidity limits (NonCondensing at all times)5% to 95% RH with 27 C (80.6 F) maximum dew pointMaximum non-operational altitude12,000 meters (39,370 feet)Maximum operational altitude3,048 meters (10,000 feet)Table 17. Maximum vibration specificationsMaximum vibrationSpecificationsOperating0.21Grms at 5Hz to 500Hz for 10min (all x, y, and z axes)Storage1.88Grms at 10Hz to 500Hz for 15min (all six sides tested)Table 18. Maximum shock pulse specificationsMaximum shock pulseSpecificationsOperatingSix consecutively executed shock pulses in the positive and negative x, y,and z axes of 6G for up to 11ms.Six consecutively executed shock pulses inthe positive and negative x, y, and z axes of 6G for up to 11ms.StorageSix consecutively executed shock pulses in the positive and negative x, y,and z axes (one pulse on each side of the system) of 71 G for up to 2 ms.Particulate and gaseous contamination specificationsThe following table defines the limitations that help avoid any damages to the IT equipment and/or, or both failure fromparticulate and gaseous contamination. If the levels of particulate or gaseous pollution exceed the specified limitations andresults in equipment damage or failure, you must rectify the environmental conditions. Remediation of environmental conditionsis the responsibility of the customer.Table 19. Particulate contamination specificationsParticulate contaminationSpecificationsAir filtrationData center air filtration as defined by ISO Class 8 per ISO14644-1 with a 95% upper confidence limit.NOTE: This condition applies to data center environmentsonly. Air filtration requirements do not apply to IT10Technical specifications