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Adaptec > 
Item#: N82E16816103217

Adaptec RAID 51645 2258500-R SATA/SAS 20-port (16 internal,4 external) w/512MB cache memory Controller Card, Kit

  • 0/1/1E/5/5EE/6/10/50/60/JBOD
  • 4 x SFF-8087 mini-SAS Internal Connectors
  • 1 x SFF-8088 mini SAS 300 - Serial Attached SCSI External External Connectors
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The Adaptec RAID 51645 is equipped with industry-leading dual core RAID on Chip (ROC), the latest x8 PCI-Express connectivity, and 512MB of DDR2 cache to deliver over 250,000 IO per second and 1.2GB/s.

Learn more about the Adaptec 2258500-R


Form Factor
Half-length Full-height Plug-in Card


External Connectors
1 x SFF-8088 mini-SAS
Internal Connectors
4 x SFF-8087 mini-SAS
PCI-Express x8
Transfer Rate
Up to 300 MBps Per Port
Cache Memory
512 MB DDR2
RAID 0/1/1E/5/5EE/6/10/50/60/JBOD
4.60" x 6.60"


Product Type: SATA RAID Controller

Drive Support: Up to 256 x Physical

Green Compliance: Yes

Green Compliance Certificate/Authority: RoHS

Manufacturer Warranty

3 years limited

Quick Info


  • Limited Warranty period (parts): 3 years
  • Limited Warranty period (labor): 0 day

Customer Reviews of the Adaptec 2258500-R

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  • John S.
  • 11/18/2011 10:07:18 PM
  • Tech Level: High
  • Ownership: more than 1 year

5 out of 5 eggsExcellent and Powerful

Pros: Fast performance, good software (Adaptec Storage Manager and BIOS support). Flexible in settings and features. Reliable if you keep it cool.

Cons: Really hot card, you need a fan dedicated to it.

Other Thoughts: I bought this the first week it was out (2-3 years ago). Very glad I did. I had the card fail at about 1.5 years, and Adaptec replaced with no problems. Today added 6th disk to a 5 disk RAID 5 array while in operation with no down time. Good documentation.

1 out of 1 people found this review helpful. Did you? Yes No

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Home > 
Computer Hardware > 
Hard Drives > 
Controllers / RAID Cards > 
Adaptec > 
Item#: N82E16816103217
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