HP Primary Secondary Riser 3x x16 PCIe 5.0 incl. cage DL380 Gen11 P51083-B21 +NEW+. PN: Option Kit: P51083-B21 Riser: PN: P42520-221 / P42519-001MS / SP: P53212-001 / AS: P42519-001 #. needs Primary Cable Kit (P56073-B21) or Secondary Cable Kit (P56074-B21) to enable slot 1/4.
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