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Network adaptersHP
516937-B21-LOW P

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No unverified model image substituted.

catalog label

516937-B21-LOW P

HP 516937-B21-LOW P — Ethernet network adapter

HPNetwork adapters1 recorded field

Title-derived fields · unverified

Price and availability: Request quotation

Download editable RFQ checklist ↓

A technical record does not certify stock, condition, current orderability or a factory-approved BOM.

Identity & purchasing scope

This record identifies 516937-B21-LOW P in the HP network adapters catalog. Its classification is catalog label. Preserve the full identifier when comparing offers: suffixes, revisions and assembly contents are part of the purchasing question.

HP 516937-B21-LOW P is a ethernet network adapter reference, classified from the supplier's own item heading. Preserve the complete listing reference when comparing offers. Confirm the offered adapter revision, included optics or bracket, host compatibility and operating specifications separately. Use the technical record to prepare an inquiry rather than as evidence that an item is available, tested, licensed or covered by a particular warranty. Inherited fast-shipping and stock language is not carried into this catalog's commercial fields.

Inherited search aliases: HP 516937-B21-LOW P — HP / HPE 10GBE DUAL Port Sfp+ PCI-E 2.0 X8 Network Interface Card - Mellanox Connectx-2 Nic Based 10gb/S Ethernet / DP10 ( 2 ) Two Small Form Factor Pluggable Plus Transceiver Slots. These are lookup aids, not certified equivalents.

Recorded technical specifications

Each field states its evidence status. Inherited and title-derived values remain unverified; reviewed OEM facts do not certify an offered configuration.

Recorded product specifications and source observations
FieldRecorded valueSource snapshot
Title-derived · network rate/connectorSfpSource reference not linked
Inherited · unverified · Observation time not recorded
Scope & source details

Reference: title-derived-v27-1

Configuration & purchase checks

  1. Record adapter number, controller family, physical slot and bracket height.
  2. Distinguish PCIe, OCP, mezzanine and vendor-specific cards even when advertised port speeds match.
  3. Review firmware, drivers, operating system and transceiver requirements for the destination system.
  4. Include cables, optics and any required feature entitlement in the scope.
  5. Request both label and connector views. A generic networking photograph cannot identify the offered adapter.

Adding an item prepares a local RFQ line. It does not create a price offer, reserve inventory or submit an order.

Read the category procurement guide →

Platform relationships & upgrade review

No explicit target-platform relationship is provided for this record. Brand, socket, capacity and visual resemblance alone must not be used to invent a compatibility claim.

Related records below are category neighbors. They are not approved replacement parts.

Actual-unit evidence to request

01

Adapter label

02

Host slot connector

03

Ports

04

Bracket or carrier

05

Optics when included

No server boot-screen image is attached to this record. Request product photographs and any diagnostic or entitlement record as separate evidence.

At acceptance, compare the delivered unit, labels and accessories with the approved list. Retain source revisions and receiving records for later maintenance.

Source trace & documentation

Source fileSource recordEvidence status
lib/customer-reference-catalog.jsonitc-66144Inherited snapshot; not re-certified
lib/customer-reference-catalog.jsonitc-66144-factory-newInherited snapshot; not re-certified
  • www.itcreations.com ↗ Reviewed supplier whole-adapter category; operating parameters remain unverified · Observed 2 Nov 2026 · 17:23:03 UTC · Source scope requires review.
  • www.itcreations.com ↗ Supplier-declared complete listing reference; all suffixes preserved. OEM ordering identity and supplier variant equivalence remain unverified. · Observed 2 Nov 2026 · 14:40:16 UTC
How evidence quality is classified →

Frequently asked questions

Is the item currently available?

This is not a live stock feed. Confirm full identifier, condition, quantity, price and delivery scope in a written quotation.

Does this record certify compatibility?

No. Inherited fields and platform associations require review against the exact destination system and current manufacturer documentation.

What should I send in an RFQ?

Include the full identifier, quantity, destination, target platform, condition, accessories and evidence needed for acceptance.

Is a configuration number another server model?

No. Models, ordering configurations, options and reference labels are distinct record types. Ask which actual purchasing unit will be supplied.

Related category records

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HPcatalog label
788995-B21-HIGH P

HP 788995-B21-HIGH P — Ethernet network adapter

Title-derived · capacity / module size
128MB
Title-derived · storage/interface
PCI-E 3.0
Title-derived · network rate/connector
Sfp

Title-derived fields · unverified

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HPcatalog label
872725-B21-HIGH P

HP 872725-B21-HIGH P — Ethernet network adapter

Title-derived · capacity / module size
100GB
Title-derived · storage/interface
PCI-E 3.0
Title-derived · network rate/connector
QSFP28

Title-derived fields · unverified

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HPcatalog label
P08456-001-HIGH P

HP P08456-001-HIGH P — Ethernet network adapter

Title-derived · capacity / module size
25gb
Title-derived · storage/interface
PCI-E 4.0
Title-derived · network rate/connector
SFP28

Title-derived fields · unverified

View details →
HPcatalog label
649108-001-HIGH P

HP 649108-001-HIGH P — Converged network adapter

Title-derived · network rate/connector
Sfp
Title-derived · controller/bus
PCIE

Title-derived fields · unverified

View details →
HPcatalog label
468330-002-HIGH P

HP 468330-002-HIGH P — Ethernet network adapter

Title-derived · network rate/connector
Sfp

Title-derived fields · unverified

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HPcatalog label
468332-B21-HIGH P

HP 468332-B21-HIGH P — Ethernet network adapter

Title-derived · network rate/connector
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Title-derived fields · unverified

View details →
01

Networking & security — the next decisions

HP / Networking & security

516937-B21-LOW P

Record port speeds, media type and uplink quantities.

This guide adds the decisions, documents and next steps that support this page.

Network equipment
Networking & security illustrative environment
02

Choose the right route

Routing & security

Specify interfaces, throughput test conditions and required software features.

Network planner

Optics & connectivity

Match connector, fiber, reach, wavelength and supported coding.

Network checklist
03

Details that change the configuration

Port map

Record port speeds, media type and uplink quantities.

Airflow & power

Match airflow direction, power supply and rack requirements.

Software entitlement

Request license and transferability details for the exact offer.

04

From requirement to handover

  1. 01

    Map endpoints

  2. 02

    Choose port & uplink plan

  3. 03

    Review optics & licenses

  4. 04

    Prepare deployment brief

A planning sequence, not a record of completed work.

05

Explore the relevant catalog

HP

Recorded catalog identities

Counts show records in the site catalog. They do not represent stock, available quantities or verified compatibility.

Snapshot: 2026-11-03

06

Compare the buying requirements

Networking & security comparison brief
DecisionRecord in your briefEvidence to retain
Port mapRecord port speeds, media type and uplink quantities.Complete identifier and source revision
Airflow & powerMatch airflow direction, power supply and rack requirements.Platform document or written clarification
Software entitlementRequest license and transferability details for the exact offer.Offered-unit details and agreed scope
Open the comparison workspace
07

Build your readiness checklist

Your preparation progress

Tick items as you prepare them. This is your personal checklist, not a hardware validation.

0 / 4 prepared0

Saved in this browser when local storage is available.

08

A closer look at the hardware

Networking & security illustrative working environment
Networking & security environment Explore
Illustrative configuration discussion
Review the requirement Explore
Illustrative protective packing workflow
Prepare the handover Explore
1 / 3

Reference-based generated scenes; actual-unit photos are available only through an explicit unit-specific request. Related models are separate catalog records, not substitutes for the item on this page.

09

Keep the supporting material together

Network checklist

Retain the supporting reference with your project brief.

Open resource
10

Turn the brief into the next step

HP / Networking & security

Keep the requirement specific.

Port and uplink schedule drafted · Optics and cable ends identified · Airflow and PSU scope confirmed · Required software entitlement listed.