Best RAID Controllers for Server Storage Expansion (2026)
Selections prioritized compatibility (interface/ports), real-world throughput and form factor, current pricing, and aggregated user ratings to rank fit and value
The Verdict
- Best Overall: HP H240 Smart HBA Storage Controller Plug-in Card Low Profile — Compact storage controller card for HP servers.
- Best Value: Dell PERC H330 Mini RAID Controller 12Gbps 512MB Cache (Renewed) GDJ3J — Dell PERC H330 mini RAID controller with 12Gbps support and 512MB cache.
This page compares top RAID controllers for server storage expansion, ranked by fit and value across common server workloads. Picks were chosen using real-world specs (SAS/SATA ports, PCIe lanes, host-bus vs hardware RAID), recent pricing, and aggregated user ratings to prioritize compatibility and cost-effectiveness.
Top Picks
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1
Best Overall HP H240 Smart HBA Storage Controller Plug-in Card Low Profile
Compact storage controller card for HP servers. Enables RAID functionality with a low-profile form factor. Customer feedback highlights overall satisfaction with performance and reliability
- low-profile plug-in form factor
- RAID controller functionality
- model 726907-B21
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2
Best Value Dell PERC H330 Mini RAID Controller 12Gbps 512MB Cache (Renewed) GDJ3J
Dell PERC H330 mini RAID controller with 12Gbps support and 512MB cache. Provides hardware RAID capabilities for server storage. Customer insight notes limited feedback on performance
- 12Gbps throughput
- 512MB cache
- renewed product option
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3
LSI SAS 9207-8i 8-Port Internal PCIe RAID Controller Card
SAS/SATA 6Gb/s PCIe controller card for internal use. Enables additional SATA ports and NAS functionality; easy installation. One customer notes plug-and-play with Unraid
- 8-port internal SAS/SATA 6Gb/s
- PCI Express interface
- single retail card with warranty