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Dell PowerEdge R230 R330 R430 Server 4 x 3.5" SAS/SATA LFF Backplane 820HH

HP 4-Bay 3.5-inch LFF Hard Drive Backplane for ProLiant DL380 Gen 10 875082-001

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Dell DGWM2 12 bay 3.5 inch hard drive backplane

Backplane Dell PowerEdge R230/R330/R430 4x3.5" 820HH

New Dell PowerEdge R730 Server 3.5' Hard Drive Backplane Board DMC25