【開封済 未使用】Seagate ST20000NM002D 3.5" SAS 20TB HDD 一般PC用のSATAではなく、高級機用のSASです。お間違えないようにご購入くださいませ。 購入後、開封はしましたが一度も使用しておりません。 Seagate ST20000NM002D 3.5" SAS 20TB HDD Weight : 670 G Key Features : Storage Capacity : 20 Tb Enclosure : Internal Interface : Sas-12gbps 512e Sector Size (bytes Per Sector) : 512 4kn Sector Size (bytes Per Sector) : 4096 Drive Dimensions : 3.5 Inch Mtbf : 2.5 Million Hours Helium Sealed-drive Design : Yes Superparity : Yes Low Halogen : Yes Powerchoice™ Idle Power Technology : Yes Powerchoice™ Power/performance Technology : Yes Low Halogen/hot-plug Support : Yes Organic Solderability Preservative : Yes Rsa 2048 Firmware Verification (sd&d) : Yes Drive Performance : Interface Access Speed (gb/s) : 12.0, 6.0, 3.0 Sustained Data Transfer Rate Od (max): 285/272 Mbps Random Read/write 4k Qd16 Wcd (iops) : 168/550 Average Latency : 4.16 Ms Interface Ports : Dual Buffer : 256 Mb Rotational Speed : 7200 Rpm Dimensions ( L X W X H) : 147.0 X 101.85 X 26.1 Mm