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 24 options.

$300$16.6718 TBRenewed5 yearsMDD MAXDIGITALDATA X18 MACH.2 (Dual Actuator) 18TB 7200RPM SAS 12Gb/s 512MB Cache 3.5-Inch Enterprise Hard Drive (MDD18TSAS51272E-2X18) - [Not a SATA HDD] (Renewed)MDDInternalSAS
$320$17.7818 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
$340$18.8918 TBNew5 yearsMDD 18TB 7200RPM 256MB Cache SAS 12.0Gb/s 3.5inch Internal Enterprise Hard Drive (MDD18TSAS25672E) - 5 Years WarrantyMDDInternalSAS
$366$20.3318 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
$390$21.6718 TBRenewed3 yearsMDD (MDD18TS25672CCTV) 18TB 7200RPM 256MB Cache SATA 6.0Gb/s 3.5inch Internal Surveillance Hard Drive - 3 Years Warranty (Renewed)MDDInternal 3.5"HDD
$399$22.1718 TBNew3 yearsMDD (MDD18TSATA25672DVR) 18TB 7200RPM 256MB Cache SATA 6.0Gb/s 3.5inch Internal Surveillance Hard Drive - 3 Years WarrantyMDDInternal 3.5"HDD
$400$22.2218 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
$400$22.2218 TBRenewed3 monthsWestern Digital Ultrastar DC HC550 18TB 7200RPM 3.5" SATA Hard Drive WUH721818ALE6L4 (Renewed)Western DigitalInternal 3.5"HDD
$410$22.7818 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
$420$23.3318 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
$440$24.4418 TBRenewed2 yearsAvolusion PRO-T8 Series 18TB USB 3.0 External Hard Drive for WindowsOS Desktop PC/Laptop (Black) (Renewed)AvolusionExternal 3.5"HDD
$440$24.4418 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
$440$24.4418 TBRenewed2 yearsAvolusion PRO-5X Series 18TB USB 3.0 External Hard Drive for WindowsOS Desktop PC/Laptop (White) (Renewed)AvolusionExternal 3.5"HDD
$460$25.5618 TBNew2 yearsOSENTRiX BX100 18TB USB 3.2 Gen 2 USB-C External Hard Drive with USB Hub for Windows or MacOS Desktop PC/LaptopOSENTRiXExternal 3.5"HDD
$480$26.6718 TBRenewed3 monthsSeagate Exos X20 18TB 7200 RPM 512e SATA 6Gb/s 3.5" Enterprise Hard Drive - ST18000NM003D (Renewed)SeagateInternal 3.5"HDD
$500$27.7818 TBRenewed2 yearsAvolusion PRO-5Y Series 18TB USB 3.0 External Hard Drive for WindowsOS Desktop PC/Laptop (White) (Renewed)AvolusionExternal 3.5"HDD
$500$27.7818 TBRenewed3 monthsSeagate IronWolf Pro 18TB NAS HDD, ST18000NE000 SATA 6Gb/s 3.5" (Renewed)SeagateInternal 3.5"HDD
$532$29.5618 TBNew0 monthsSeagate Enterprise 3.5" 18000 GB 7200 RPM 18 TB 3.5" 7200 RPM SATA ST18000NM00JSeagateInternal 3.5"HDD
$540$3018 TBUsed3 yearsSanDisk Professional 18TB G-Drive Enterprise-Class External Desktop Hard Drive - 7200RPM Ultrastar HDD Inside, USB-C (10Gbps), USB 3.2 Gen 2, Mac Ready - SDPHF1A-018T-NBAADSanDiskExternal 3.5"HDD
$575$31.9418 TBUsed1 yearSeagate EXOS X20 18TB SAS 3.5IN 7200RPM 6GB/S 512E/4KSeagateInternalSAS
$594$3318 TBUsed0 monthsSeagate Enterprise ST18000NM004J Internal Hard Drive 3.5" 18TB SASSeagateInternal 3.5"HDD
$599$33.2818 TBRenewed0 monthsWD WD181KRYZ Gold 18 TB Hard Drive - 3.5-inch Internal - SATA (SATA/600) - Server, Storage System Device Supported - 7200rpm (Renewed)Western DigitalInternal 3.5"HDD
$649$36.0618 TBRenewed2 yearsSeagate Exos X18 18TB SAS 12Gb/s 7200RPM 3.5" Enterprise Hard Drive - ST18000NM005J (Renewed)SeagateInternalSAS
$700$38.8918 TBNew5 yearsSeagate Exos X18 ST18000NM005J 18 TB Hard Drive - Internal - SAS (12Gb/s SAS) - 7200rpm - 5 Year WarrantySeagateInternalSAS

FAQ

  • How much is 18 terabytes in gigabytes or GB?

    Value of 18 terabytes or 18 TB is 18432 GB in binary, and 18000 GB in decimal. In general, 1 terabyte is equal to 1000 gigabytes in decimal and 1024 gigabytes in binary.

  • How much does a 18 TB hard drive cost?

    We found these 24 hard drives with 18 TB capacity. The most affordable 18 TB drive costs $300 and the most expensive one costs $700. That's a price difference of $400! Please note that prices may vary and change over time.

  • Which is the cheapest 18 TB hard drive?

    The cheapest 18 TB hard drive is the MDD MAXDIGITALDATA X18 MACH.2 (Dual Actuator) 18TB 7200RPM SAS 12Gb/s 512MB Cache 3.5-Inch Enterprise Hard Drive (MDD18TSAS51272E-2X18) - [Not a SATA HDD] (Renewed) priced at $300 which roughly comes out to $16.67 per TB. It can be a good buy at this price point, MDD 18TB 7200RPM 256MB Cache SAS 12.0Gb/s 3.5inch Internal Enterprise Hard Drive (MDD18TSAS25672E) - 5 Years Warranty is also another good one at $18.89 per TB, but please do your own research before making a purchase.

  • How much data can a 18 TB hard disk hold?

    A 18 TB hard disk can hold approximately 4500000 photos taken with a 12MP camera, 4500 full-length HD movies (around 9000 hours of HD video), 117 million document pages, or 180 hours of 4K video content at 30fps. These are approximate values and actual storage capacity may vary depending on file formats, compression, and other factors.