Dell PowerEdge T550 EMC Technical Specifications - Page 14

8x, 16x, 24x 2.5-inch SAS/SATA Configuration 1 8x 3.5-inch Configuration 2 120 W 125 W 135 W 150 W 165 W 185 W 205 W 220 W STD HSK STD HSK STD HSK STD HSK HPR HSK HPR HSK Not supporte d Not supporte d STD HSK STD HSK STD HSK STD HSK HPR HSK HPR HSK HPR HSK HPR HSK STD HSK STD HSK STD HSK STD HSK HPR HSK HPR HSK HPR HSK HPR HSK STD HSK STD HSK STD HSK STD HSK HPR HSK HPR HSK HPR HSK HPR HSK STD HSK STD HSK STD HSK STD HSK HPR HSK HPR HSK Not supporte d Not supporte d STD HSK STD HSK STD HSK STD HSK HPR HSK HPR HSK HPR HSK HPR HSK STD HSK STD HSK STD HSK STD HSK HPR HSK HPR HSK HPR HSK HPR HSK STD HSK STD HSK STD HSK STD HSK HPR HSK HPR HSK HPR HSK HPR HSK 8x 3.5-inch + 8x 2.5-inch NVMe Configuration 3 STD STD HSK HSK STD STD HSK HSK STD STD HSK HSK STD STD HSK HSK HPR HSK HPR HSK HPR HSK HPR HSK HPR HSK HPR HSK HPR HSK HPR HSK Particulate and gaseous contamination specifications The following table defines the limitations that help avoid any damages to the IT equipment and/or, or both failure from particulate and gaseous contamination. If the levels of particulate or gaseous pollution exceed the specified limitations and results in equipment damage or failure, you must rectify the environmental conditions. Remediation of environmental conditions is the responsibility of the customer. Table 21. Particulate contamination specifications Particulate contamination Air filtration Specifications Data center air filtration as defined by ISO Class 8 per ISO 14644-1 with a 95% upper confidence limit. NOTE: This condition applies to data center environments only. Air filtration requirements do not apply to IT equipment designed to be used outside a data center, in environments such as an office or factory floor. NOTE: Air entering the data center must have MERV11 or MERV13 filtration. Conductive dust Air must be free of conductive dust, zinc whiskers, or other conductive particles. NOTE: This condition applies to data center and non-data center environments. Corrosive dust ● Air must be free of corrosive dust. ● Residual dust present in the air must have a deliquescent point less than 60% relative humidity. NOTE: This condition applies to data center and non-data center environments. 14 Technical specifications