IBM ServeRAID

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Same as ServeRAID-3H adapter except battery backup module is standard
ServeRAID-4L
(part 37L6091, 2000)
US Announcement Letter: 100-099
Visual identifiers:
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One external VHDCI connector
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One internal 68-pin industry-standard SCSI connector
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Space for two internal connectors, but only one present (same circuit board as the 4M)
ServeRAID-4Lx
(part 06P5740, 2001)
US Announcement Letter: 101-146
Visual identifiers:
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Half-length card
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Square heat sink in the middle of the card
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One external VHDCI connector
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One internal 68-pin industry-standard SCSI connector