18 TB Hard Disk Drives Prices - SSDs and HDDs

Compare prices of 18 TB hard disk drives from top manufacturers. Find best and low cost internal and external HDDs and SSDs from 37 options.

$190$10.5618 TBRenewed3 monthsMDD MAXDIGITALDATA MDD 18TB 7200RPM 256MB Cache SAS 12.0Gb/s 3.5inch Internal Enterprise Hard Drive (MDD18TSAS25672E) - [Not a SATA HDD] (Renewed)MDDInternalSAS
$210$11.6718 TBUsed3 monthsSeagate (Recertified IronWolf Pro 18TB Enterprise NAS Internal HDD Hard Drive – CMR 3.5 Inch SATA 6Gb/s 7200 RPM 256MB Cache for RAID Network Attached Storage (ST18000NT001)SeagateInternal 3.5"HDD
$263$14.6118 TBNew3 yearsWD 18TB My Book Desktop External Hard Drive, USB 3.0, External HDD with Password Protection and Auto Backup Software - WDBBGB0180HBK-NESNWestern DigitalExternal 3.5"HDD
$265$14.7218 TBRenewed3 monthsSeagate Enterprise ST18000NM004J Internal Hard Drive 3.5" 18TB 7.2K RPM SAS 12Gb/s for Servers *Desktop PC's Not Supported*(Renewed)SeagateInternalSAS
$269$14.9418 TBRenewed2 yearsWater Panther WP Arsenal 18TB SATA 7200RPM 3.5-Inch DAS Hard Drive (Renewed)WaterInternal 3.5"HDD
$272$15.1118 TBUsed3 monthsSeagate (Recertified Exos X18 18TB Enterprise HDD - CMR 3.5 Inch Hyperscale SATA 6Gb/s, 7200 RPM, 512e and 4Kn FastFormat, Low Latency with Enhanced Caching (ST18000NM000J)SeagateInternal 3.5"HDD
$275$15.2818 TBRenewed3 monthsWestern Digital Ultrastar DC HC550 18TB 7200RPM 3.5" SATA Hard Drive WUH721818ALE6L4 (Renewed)Western DigitalInternal 3.5"HDD
$280$15.5618 TBNew1 yearSeagate Expansion 18TB External Hard Drive HDD - USB 3.0, with Rescue Data Recovery Services (STKP18000400)SeagateExternal 3.5"HDD
$289$16.0618 TBRenewed5 yearsMDD MAXDIGITALDATA MDD (MDD18TS25672NAS) 18TB 7200 RPM 256MB Cache SATA 6.0Gb/s 3.5'' Internal NAS Hard Drive (Renewed)MDDInternal 3.5"HDD
$290$16.1118 TBRenewed2 yearsAvolusion PRO-5Y Series 18TB USB 3.0 External Hard Drive for WindowsOS Desktop PC/Laptop (White) (Renewed)AvolusionExternal 3.5"HDD
$290$16.1118 TBRenewed2 yearsAvolusion PRO-5X (Grey) 18TB USB 3.0 External Hard Drive for PC, Mac, Xbox (Renewed)AvolusionExternal 3.5"HDD
$290$16.1118 TBRenewed2 yearsAvolusion PRO-G1 Series 18TB USB 3.2 Gen 2 (10Gbps) USB-C External Hard Drive for Windows or MacOS Desktop PC/Laptop (Silver) (Renewed)AvolusionExternal 3.5"HDD
$290$16.1118 TBRenewed2 yearsAvolusion PRO-T8 Series 18TB USB 3.0 External Hard Drive for WindowsOS Desktop PC/Laptop (Black) (Renewed)AvolusionExternal 3.5"HDD
$290$16.1118 TBRenewed2 yearsAvolusion PRO-T5 Series USB 3.0 External Hard Drive for WindowsOS Desktop PC/Laptop (White) - 2 Year Warranty (18TB) (Renewed)AvolusionExternal 3.5"HDD
$290$16.1118 TBRenewed2 yearsAvolusion M5 Series 18TB USB 3.0 External Hard Drive for WindowsOS Desktop PC/Laptop (Renewed)AvolusionExternal 3.5"HDD
$300$16.6718 TBUsed5 yearsSeagate Exos X18 18TB Enterprise HDD - CMR 3.5 Inch Hyperscale SATA 6Gb/s, 7200 RPM, 512e and 4Kn FastFormat, Low Latency with Enhanced Caching (ST18000NM000J)SeagateInternal 3.5"HDD
$300$16.6718 TBNew3 monthsWestern Digital Internal Hard Drives 18Tb DC HC550 Surveillance,Wd 3.5 HDD Sata 6Gb/s 7200 PRM NAS 512 mb Cache for Dvr NvrWestern DigitalInternal 3.5"HDD
$310$17.2218 TBRenewed2 yearsAvolusion PRO-5X Series 18TB USB 3.0 External Hard Drive for WindowsOS Desktop PC/Laptop (White) (Renewed)AvolusionExternal 3.5"HDD
$325$18.0618 TBNew3 yearsToshiba N300 18TB NAS 3.5-Inch Internal Hard Drive - CMR SATA 6 Gb/s 7200 RPM 512 MB Cache - HDWG51JXZSTAToshibaInternal 3.5"HDD
$339$18.8318 TBNew2 yearsToshiba X300 18TB Performance & Gaming 3.5-Inch Internal Hard Drive - CMR SATA 6 Gb/s 7200 RPM 512 MB Cache - HDWR51JXZSTAToshibaInternal 3.5"HDD
$344$19.1118 TBUsed0 monthsSeagate Enterprise ST18000NM004J Internal Hard Drive 3.5" 18TB SASSeagateInternal 3.5"HDD
$349$19.3918 TBNew5 yearsToshiba X300 PRO 18TB High Workload Performance for Creative Professionals 3.5-Inch Internal Hard Drive – Up to 300 TB/Year Workload Rate CMR SATA 6 GB/s 7200 RPM 512 MB Cache - HDWR51JXZSTBToshibaInternal 3.5"HDD
$350$19.4418 TBNew5 yearsSeagate Exos X18 ST18000NM004J 18 TB Hard Drive - Internal - SAS (12Gb/s SAS)SeagateInternalSAS
$355$19.7218 TBRenewed3 monthsSeagate Exos X20 18TB 7200 RPM 512e SATA 6Gb/s 3.5" Enterprise Hard Drive - ST18000NM003D (Renewed)SeagateInternal 3.5"HDD
$359$19.9418 TBUsed6 monthsSeagate ST18000NM003D 18TB Exos X20 SATA Hard Drive, 3.5" HDD, SATA 6Gb/s, 7200rpm, 256MB Cache, 512E, 4.16ms, NCQSeagateInternal 3.5"HDD
$375$20.8318 TBNew5 yearsWestern Digital WD Gold Internal Hard Drive, 18 TB, 3.5 Inches, SATA 7200 RPM, 512 MB Cache, 512 MB, Enterprise, 5 Years Manufacturer's Warranty, Eco Package (Authorized Dealer in Japan)Western DigitalInternal 3.5"HDD
$380$21.1118 TBUsed5 yearsWestern Digital 18TB WD Gold Enterprise Class Internal Hard Drive - 7200 RPM Class, SATA 6 Gb/s, 512 MB Cache, 3.5" - WD181KRYZWestern DigitalInternal 3.5"HDD
$387$21.518 TBUsed5 yearsWestern Digital 18TB WD Red Pro NAS Internal Hard Drive HDD - 7200 RPM, SATA 6 Gb/s, CMR, 512 MB Cache, 3.5" - WD181KFGXWestern DigitalInternal 3.5"HDD
$399$22.1718 TBNew5 yearsWestern Digital Ultrastar DC HC555 WUH722018CLE6L4 0B48723 18TB 7.2K RPM SATA 6Gb/s 512e 3.5in Enterprise Hard DriveWestern DigitalInternal 3.5"HDD
$400$22.2218 TBNew5 yearsToshiba N300 PRO 18TB Large-Sized Business NAS (up to 24 bays) 3.5-Inch Internal Hard Drive - Up to 300 TB/year Workload Rate CMR SATA 6 GB/s 7200 RPM 512 MB Cache - HDWG51JXZSTBToshibaInternal 3.5"HDD
$439$24.3918 TBNew5 yearsSeagate Exos X18 ST18000NM005J 18 TB Hard Drive - Internal - SAS (12Gb/s SAS) - 7200rpm - 5 Year WarrantySeagateInternalSAS
$468$2618 TBNew5 yearsWestern Digital 18TB WD Purple Pro Surveillance Internal Hard Drive HDD - SATA 6 Gb/s, 512 MB Cache, 3.5" - WD181PURPWestern DigitalInternal 3.5"HDD
$494$27.4418 TBNew0 monthsWD Red Pro 18TB NAS 3.5" Internal Hard Drive - 7200 RPM Class, SATA 6 Gb/s, CMR, 512MB CacheWestern DigitalInternal 3.5"HDD
$500$27.7818 TBNew0 monthsSeagate Enterprise 3.5" 18000 GB 7200 RPM 18 TB 3.5" 7200 RPM SATA ST18000NM00JSeagateInternal 3.5"HDD
$590$32.7818 TBNew2 yearsFantom Drives 18TB External Hard Drive HDD, GFORCE 3 Pro 7200RPM, USB 3.0 + eSATA, Aluminum, Fanless, On/Off Switch, Black, GFP18000EU3FantomExternal 3.5"HDD
$683$37.9418 TBRenewed3 monthsSeagate IronWolf Pro 18TB NAS HDD, ST18000NE000 SATA 6Gb/s 3.5" (Renewed)SeagateInternal 3.5"HDD
$782$43.4418 TBRenewed3 monthsSeagate Enterprise 3.5" 18000 GB 7200 RPM 18 TB 3.5" 7200 RPM SATA ST18000NM00J (Renewed)SeagateInternal 3.5"HDD

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