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680243059739
HP 498386-B28 30m 4X DDR/QDR Quad Small Form Factor Pluggable InfiniBand Optical Cable
680243059739

HP 498386-B28 30m 4X DDR/QDR Quad Small Form Factor Pluggable InfiniBand Optical Cable

Best price now

$290.00at GotodirectChecked Nov 12

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Price facts

  • Last seen at $290.00 at Gotodirect on Nov 12.

Our take on the HP 498386-B28 30m 4X DDR/QDR Quad Small Form Factor Pluggable InfiniBand Optical Cable

The HP 498386-B28 is a 30-meter active optical QSFP cable for 4X DDR and QDR InfiniBand links. It carries four lanes over fiber instead of copper, so it reaches across a rack row or between racks where passive copper cables cannot. It suits data center and HPC operators keeping older DDR/QDR InfiniBand fabrics alive. Against copper QSFP cables it trades higher cost for far greater reach and lighter, thinner runs; against newer FDR and EDR gear it is limited to 20 Gb/s per port.

Best forData centers running DDR or QDR InfiniBand fabricsLong switch-to-switch or switch-to-server runs beyond copper reachReplacing failed links in existing HP InfiniBand installations
Pros
  • 30 m reach far exceeds passive copper QSFP cables
  • Active optical design keeps signal integrity over long runs
  • Thinner and lighter than copper for easier cable management
  • QSFP pluggable ends fit standard 4X DDR/QDR ports
Cons
  • Limited to DDR/QDR speeds, not FDR or EDR
  • Optical cable costs more than copper at short lengths
  • No backward use on Ethernet SFP+ ports
  • Older InfiniBand generation with shrinking support

HP 498386-B28 30m 4X DDR/QDR Quad Small Form Factor Pluggable InfiniBand Optical Cable prices at every store

  • GotodirectNew

    In stock

    $290.00Checked Nov 12
    Visit Gotodirect

Store links may earn us a commission.

About the HP 498386-B28 30m 4X DDR/QDR Quad Small Form Factor Pluggable InfiniBand Optical Cable

This is an HP InfiniBand optical cable, model 498386-B28. It is 30 m long and uses Quad Small Form Factor Pluggable (QSFP) connectors.

The cable supports 4X DDR/QDR InfiniBand.

Brand
HP
Model
498386-B28
Type
InfiniBand optical cable
Length
30 m
Data rate
4X DDR/QDR
Connector
Quad Small Form Factor Pluggable (QSFP)

Questions and answers

What speeds does this cable support?
It is built for 4X DDR and QDR InfiniBand, so 20 Gb/s per port. It will not run at FDR or EDR rates.
Can I use it between racks?
Yes. At 30 meters it is meant for runs beyond what passive copper QSFP cables handle, such as between racks in the same room.
Does it work in an Ethernet SFP+ port?
No. It is a QSFP InfiniBand cable and needs a 4X DDR/QDR InfiniBand port at both ends.
Is it compatible with non-HP switches?
It is an HP part, so it is safest in HP InfiniBand switches and adapters. Check that the other end accepts HP-coded QSFP optics.
Is it directional?
Active optical QSFP cables are typically polarity-specific. Confirm which end is marked for the switch and which for the adapter before installing.
Where is the HP 498386-B28 30m 4X DDR/QDR Quad Small Form Factor Pluggable InfiniBand Optical Cable cheapest?
At Gotodirect, for $290.00, as of our latest check.