Image 1 of 1 Western Digital Gold 1TB 3.5' Enterprise Class SATA 6 Gb/s HDD 7200 RPM Cache Size 128MB 5-Year Limited Warranty $179.00 On backorder - Contact us for lead times Western Digital Gold 1TB 3.5' Enterprise Class SATA 6 Gb/s HDD 7200 RPM Cache Size 128MB 5-Year Limited WarrantyPart Number: WD1005FBYZProduct FeaturesCapacity1: 1TBInterface: SATA 6 Gb/sFormat: Sector size (bytes)2: 512nNative Command Queuing: YesForm Factor: 3.5-inchOptiNAND™ technology: NoArmorCacheTM: NoRoHS compliant3: YesPerformanceData Transfer Rate4 (max sustained transfer rate)MiB/s / MB/s: 175 / 184RPM: 7200Cache1, 5: 128 MBReliabilityMTBF (hours, projected): 2,000,000Annualized Failure Rate (AFR, %): 0.44Load/unload cycles (minimum): 600,000Limited Warranty (years): 5Power ManagementOperational: 8.1WIdle: 5.9WPower efficiency index (W/TB, idle): 3Environmental SpecificationsOperating (half-sine wave, 2ms): 65G/65GNon-operating (half-sine wave, 2ms): 300GOperating: 5°C to 60°CNon-operating: -40°C to 70°CIdle Mode: 25 dBA Seek Mode: 28 dBA Physical Dimensions: 26.1x147x101.6mm, 1.028x5.787x4.0in, 0.64kg, 1.41lbCountry of Assembly: Thailand On backorder - Contact us for lead times Added! Western Digital Gold 1TB 3.5' Enterprise Class SATA 6 Gb/s HDD 7200 RPM Cache Size 128MB 5-Year Limited WarrantyPart Number: WD1005FBYZProduct FeaturesCapacity1: 1TBInterface: SATA 6 Gb/sFormat: Sector size (bytes)2: 512nNative Command Queuing: YesForm Factor: 3.5-inchOptiNAND™ technology: NoArmorCacheTM: NoRoHS compliant3: YesPerformanceData Transfer Rate4 (max sustained transfer rate)MiB/s / MB/s: 175 / 184RPM: 7200Cache1, 5: 128 MBReliabilityMTBF (hours, projected): 2,000,000Annualized Failure Rate (AFR, %): 0.44Load/unload cycles (minimum): 600,000Limited Warranty (years): 5Power ManagementOperational: 8.1WIdle: 5.9WPower efficiency index (W/TB, idle): 3Environmental SpecificationsOperating (half-sine wave, 2ms): 65G/65GNon-operating (half-sine wave, 2ms): 300GOperating: 5°C to 60°CNon-operating: -40°C to 70°CIdle Mode: 25 dBA Seek Mode: 28 dBA Physical Dimensions: 26.1x147x101.6mm, 1.028x5.787x4.0in, 0.64kg, 1.41lbCountry of Assembly: Thailand