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Item#: N82E16816118099

LSI MegaRAID SATA/SAS 8704EM2 3Gb/s PCI-Express w/ 128MB onboard memory RAID Controller Card, Kit

  • RAID levels 0, 1, 5 and 6
  • RAID Spans 10, 50 and 60
  • 1 x Mini-SAS SFF-8087 x4 connectors Internal Connectors
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Learn more about the LSI MegaRAID SAS 8704EM2


MegaRAID SAS 8704EM2


Internal Connectors
1 x Mini-SAS SFF-8087 x4 connectors
PCI-Express x8
Transfer Rate
3Gb/s throughput per port
Cache Memory
128MB 667MHz DDRII cache memory
RAID levels 0, 1, 5 and 6
RAID Spans 10, 50 and 60
Low-profile MD2 form factor (6.6" X 2.536")


Low-profile MD2 form factor - best fit for high density servers
One internal Mini-SAS connector for connecting SAS and SATA hard drives
Proven LSI SAS1078 storage processor with RAID 5 and RAID 6 support
x8 PCI Express host interface for even greater bandwidth

Manufacturer Warranty

3 years limited

Quick Info


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

Customer Reviews of the LSI MegaRAID SAS 8704EM2

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  • Jack A.
  • 7/12/2009 4:10:15 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsWorks Well, almost a 5 Egger

Pros: Latest firmware/management software has "power down idle disk" option! Will have to play with it and see if it actually works. Haven't tested it yet.

It does work with Seagate 1.5 TB ST31500341AS.
I have 4 of them in a Raid5 config.

Cons: Could use more flexibility in scheduling Media Patrol Checks,
LSI's software only lets you choose Continuous, or Every X Hours. It can not be set it up for a weekly, bi-weekly, or monthly @ X time.
This is important to know exactly when it starts so degradation in performance can be accounted for quickly and predictability. Every so many X hours setting allows for the repetition time to drift depending on completion duration.

Other Thoughts: Take the supplied CD and chuck it, as usual it is grossly out of date. Update to the latest firmware immediately from the LSI website and install the latest managing software.

Windows XP 32 bit does not see my LUN that is 4.5 TB.
Vista 64 bit sees it.

3 out of 4 people found this review helpful. Did you? Yes No

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Home > 
Computer Hardware > 
Hard Drives > 
Controllers / RAID Cards > 
LSI > 
Item#: N82E16816118099
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