机械硬盘（HDD）

Seagate Exos 7E10 4TB HDD Hard Drive 3.5" SAS 3.0 7200rpm with 256MB Cache for Server ST4000NM025B

Western Digital Gold Enterprise Class 24TB HDD Hard Drive 3.5" SATA III 7200rpm with 512MB Cache for Server / Recorder WD241KRYZ

• 价格较高，对预算有限的家庭或小型企业用户不够友好。
• 7200rpm转速下噪音和发热量均高于5400rpm型号，需注意散热。
• 24TB超大容量，适合长时间视频监控或服务器密集存储需求。

Western Digital Red Pro 24TB HDD Hard Drive 3.5" SATA III 7200rpm with 512MB Cache for NAS WD240KFGX

Western Digital Ultrastar 12TB HDD Hard Drive 3.5" SATA III 7200rpm with 256MB Cache for Server 0B47063

Western Digital DC HC590 24TB HDD Hard Drive 3.5" SATA III 7200rpm for NAS / Server 0F59373

Dell 2TB HDD Hard Drive 3.5" SATA III 7200rpm for Server 161-BBRC

Western Digital Ultrastar DC HC580 22TB HDD Hard Drive 3.5" SATA III 7200rpm for NAS / Server / Recorder 0F62791

Western Digital 3TB HDD Hard Drive 3.5" SATA III 5400rpm with 128MB Cache for Recorder WD34PURZ

Toshiba Surveillance S300 AI 10TB HDD Hard Drive 3.5" SATA III 7200rpm with 512MB Cache for Recorder MG10ADA10TE-V

Seagate SkyHawk AI 32TB HDD Hard Drive 3.5" SATA III 7200rpm with 512MB Cache for Recorder ST32000VE000

Seagate Exos 7E10 10TB HDD Hard Drive 3.5" SAS 3.0 7200rpm with 256MB Cache for NAS / Server / Recorder ST10000NM018B

Seagate Exos X18 18TB HDD Hard Drive 3.5" SAS 3.0 7200rpm with 256MB Cache for NAS / Server ST18000NM004J

Western Digital 24TB HDD Hard Drive 3.5" SATA III 7200rpm with 512MB Cache for Recorder WD240PURP

HP 834031-B21 8TB HDD Hard Drive 3.5" SAS 3.0 7200rpm for Server

• SAS接口成本高于SATA，不适合普通桌面用户。
• 机械结构转速有限，随机读写速度远低于SSD。
• 8TB大容量适合企业级服务器存储需求。

Western Digital DC HC690 24TB HDD Hard Drive 3.5" SATA III 7200rpm with 512MB Cache for NAS / Server / Recorder 0F65684

Synology HAS5310 20TB HDD Hard Drive 3.5" SAS 3.0 7200rpm with 281MB Cache for NAS HAS5310-20T

Toshiba Enterprise 20TB HDD Hard Drive 3.5" SATA III 7200rpm for Desktop MG11ACA20TE

Western Digital Ultrastar DC HC330 10TB HDD Hard Drive 3.5" SATA III 7200rpm with 256MB Cache for Server 0B42266 WUS721010ALE6L4

Seagate Exos 7E10 512n 6TB HDD Hard Drive 3.5" SATA III 7200rpm with 256MB Cache for Server ST6000NM000B

Toshiba MG08 6TB HDD Hard Drive 3.5" SATA III 7200rpm with 256MB Cache for Server MG08ADA600E

Seagate Exos 7E10 4TB HDD Hard Drive 3.5" SATA III 7200rpm for NAS / Server / Recorder ST4000NM024B

Toshiba MG08A 8TB HDD Hard Drive 3.5" SATA III 7200rpm with 256MB Cache for Server MG08ADA800E

Fujitsu 2TB HDD Hard Drive 3.5" SATA III 7200rpm for Server PY-BH2T7B9

Western Digital Purple Pro 26TB HDD Hard Drive 3.5" SATA III 7200rpm with 512MB Cache for Recorder WD260PURP