3.5 Hard Drive Size
Overview
Product sourcing insights & recommendations


The 3.5-inch hard drive market in 2026 remains highly resilient, driven by the massive data storage needs of AI and hyperscale data centers. While SSDs dominate the consumer boot drive market, the 3.5-inch form factor maintains a significant cost-per-terabyte advantage, holding over 65% of global HDD revenue. The transition to HAMR (Heat-Assisted Magnetic Recording) technology is pushing capacities toward 30TB+ in the enterprise sector, with 100TB targeted for the next decade.
I have compiled a comprehensive market report and buying guide that details these trends, capacity roadmaps, and 2026 pricing benchmarks. The guide also provides clear distinctions between Desktop and NAS-specific drives to help you avoid common RAID compatibility issues.
Please refer to the detailed report below for specific model recommendations and market data.
You can explore these market insights further with these options:
3.5 Inch Hard Drive 16tb 18tb 20tb Nas Hdd Cmr
Products · 2 lists

X20 ST20000NM007D 20TB 3.5 Inch 6Gb s 7200RPM 256MB CMR Helium Enterprise Hard Drive HDD Server NAS Data Center
Hunan Hongze Tong Information Technology Co., Ltd.🇨🇳CN1 yr
NAS Pro HDD ST20000NT001 20TB SAS 6Gb/s 256MB 7200 RPM 3.5" SATA CMR ST20000NT001 Hard Disk Drive for Server
CRYSTAL DRINK COMPANY LIMITED🇹🇭TH1 yr
Original Hard Drive ST18000NM009J Enterprise Grade 18TB Mechanical Hard Drive CMR Vertical NAS Server 3.5-inch HDD
Shenzhen Linkcore Tech Ltd🇨🇳CN1 yr
For for Enterprise NAS Internal SATA Mechanical Hard Disk High Speed New 2T/4T/6T/8T/10T/16T/18T/20T/24T
Dazhe E-commerce (Shenzhen) Co., Ltd.🇨🇳CN1 yr
16TB Red Pro NAS Internal SATA Hard Drive-7200 RPM 6 Gb/s CMR 512 MB 3.5" WD161KFGX High-Capacity Storage
HOA LONG HOME COMPANY LIMITED🇻🇳VN1 yr
16TB NAS Internal Hard Drive HDD CMR 3.5 Inch SATA 6GB/S 7200 RPM 256MB Cache DVR NVR Storage ST16000VN001
Shenzhen Yoqinee E-Commerce Co., Ltd.🇨🇳CN1 yr
TOSHI Desktop Nas System HDD P300 N300 Sata 3.5" 1TB 2TB 3TB 4TB 6TB 8TB 10TB 12TB 14TB 16TB 18TB 20TB Hard Drive
Menn Industries Co., Ltd.🇨🇳CN18 yrs
Hdd for Original 3.5-inch 16T Galaxy ST16000NM001G Server Hard Disk for NAS Storage
Shenzhen Keyongbang Electronic Co., Ltd.🇨🇳CN4 yrs
Used Hard Disk 6TB NAS 24/7 Operation ST6000NE000 CMR 3.5inch HDD Hard Drive NVR DVR CCTV Hard Disk
Shenzhen Turbo Supply Chain Co., Ltd.🇨🇳CN1 yr
ST8000VN004 8TB 3.5 Inch SATA III 7200RPM 256MB Cache CMR NAS Internal Hard Disk Drive HDD
Guangzhou Suobo Information Technology Co., Ltd.🇨🇳CN2 yrs
Hot Sell Nas Internal HDD Hard Disk 3.5'' SAS 6Gb/s 2T 4T 6T 8T 10T 12T 16 TB 18T 20T 22T 24T HDD 7200RPM Hard Drive
Shenzhen Changliu Global Trading Co., Ltd.verified🇨🇳CN2 yrs
NAS-Optimized Professional Hard Drive with 12TB-20TB Capacity and Enhanced Vibration Resistance for Multi-Bay Systems
Skybetter Technology Limitedverified🇭🇰HK1 yr
ST8000VN004 8TB 3.5 Inch SATA III 7200RPM 256MB Cache CMR NAS Internal Hard Disk Drive HDD
Shenzhen Huatenmax Technology Co., Ltd.🇨🇳CN3 yrs
ST18000NM000J 18TB Helium Galaxy Enterprise-Class NAS Mechanical Hard Drive 18TB
JLS Future Trading Limitedverified🇭🇰HK3 yrs
For for Red Plus Internal Hard Drive 6 TB CMR 3.5 Inch SATA 5400 RPM 256 MB NAS (.co.jp Limited)
Tianxin Electronics (Chengdu) Co., Ltd.🇨🇳CN1 yr
2TB 3.5 Inch 5400rpm 64MB Cache SATA NAS Internal CMR Hard Drive for Network Storage WD20EFRX
Hunan Zhongchuang Xinyuan Electronic Commerce Technology Co., Ltd.🇨🇳CN4 yrs
ST18000NM003D ST8000NM018B Original NEW for Seagate Exos X20 18TB 8TB 3.5 Inch SATA Helium Enterprise Hard Drive for NAS System
Shanghai Beiyi Information Technology Co., Ltd.🇨🇳CN6 yrs
For 10TB for Red Plus NAS Internal Hard Drive 7200 RPM SATA 6 GB/s CMR 512 MB Cache 3.5" WD100EFGX New
Beijing Woxun Jiahua Technology Co., Ltd.🇨🇳CN1 yr
Exos X16 ST16000NM001G 16TB Enterprise HDD SATA 6Gb/s 7200RPM 256MB 3.5 Inch Internal Hard Drive for Server Data Center Storage
Shenzhen Beineng Tech. Co., Ltd.🇨🇳CN3 yrs
Hot Sale Server Hard Drive Enterprise Nas Network Storage External Hard Drive 2.5 3.5 Inch Sata Sas Hard Disk for Server
Beijing Puhua Haotian Technology Co., Ltd.verified🇨🇳CN3 yrs
Original New HDD 6TB 3.5inch Red NAS SATA III 64MB Power WD60EFRX

WD40EFRX for WD Red Plus 4TB NAS Hard Disk Drive
Shenzhen Fit It Co., Ltd.🇨🇳CN12 yrs
ST16000NM004J Hard Disk 16TB SAS3 High Capacity Hard Drive Disk Storage Original PC Hard Disk

Red Pro 16TB NAS Hard Disk Drive 7200rpm Class SATA 6Gb/s 256MB Cache 3.5 Inch Internal New Product
Hefei Lingyu Cross-Border E-Commerce Co., Ltd.🇨🇳CN1 yr
New Arrival Desigined 100% Tested and in Good Health 3.5inch SATA Interal Nas Hdd 500GB Hard Disk Drive

Western Digital Red NAS Mechanical Hard 1TB 2TB 3TB 4TB Drive 5400 RPM 64MB SATA 3.5-inch NAS Dedicated Hard Drive WD40EFRX
Shenzhen Yideng Technology Co., Ltd🇨🇳CN3 yrs
NAS Red Drive 3.5-inch Computer SATA64MB Vertical Mechanical Hard Drive 3TB

New Original 2TB Red Internal NAS Hard Drive WD20EFRX 3.5 Inch SATA 6Gb/s 5400RPM 64MB Cache High Speed Desktop Server Storage

NAS Red Drive 3.5-inch Computer SATA64MB Vertical Mechanical Hard Drive 3TB

New Original 2TB Red Internal NAS Hard Drive WD20EFRX 3.5 Inch SATA 6Gb/s 5400RPM 64MB Cache High Speed Desktop Server Storage
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Sources & References
23 sources cited · Verified industry data & reports

Hard Disk Drive Market Trends, Growth & Segmentation
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By form factor, 3.5-inch drives led with 65.62% revenue share in 2025; the segment is advancing at a 9.29% CAGR through 2031. By application, ...

Hard Disk Drive (HDD) Market Intelligence Report 2026-2031
Yahoo Finance
Hard Disk Drive (HDD) Market Intelligence Report 2026-2031 - 3.5-Inch Drives Contributed 65.62% of Revenue in 2025; Projected to Grow at a 9.29% ...

Hard Disk Drive (HDD) Market Size & Future Growth, 2033
Persistence Market Research
The global hard disk drive (HDD) market size is set to reach US$ 44.3 Bn in 2026 and grow to US$ 67.9 Bn by 2033, at a CAGR of 6.3% from 2026–2033.

Hard Disk Drive (HDD) - Market Share Analysis, Industry ...
Research and Markets
3.5-inch units delivered 65.62% revenue in 2025, outpacing the overall Hard Disk Drive market with a 9.29% CAGR to 2031. Their large platters enable superior ...

Why hard drives becoming so expensive in 2026?
Reddit · r/selfhosted
I was checking on hard drives with a minimum storage capacity of 20TB and was shocked when I saw the prices. I think that the prices increased by at least ...

Hard Disk Drive Market outlook from 2026 - 2033
And this market is projected to grow annually by 14% from 2026 to 2033. desktop HDDs are 3.5 inches. analytics, and IoT. Emerging trends ...
