PN: 845970-B21

845970-B21 HPE QSFP28 to SFP28 Adapter (QSA28) 100G Port to 25G SFP28

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$565IndicativeRequest a live quote for your exact price · ships worldwide from ICD

HPE Power Adapter — Part #845970-B21
Compatible with HPE ProLiant servers. Tested & quality guaranteed.

Need a price for 845970-B21?

845970-B21 available to order — tested and serial-verified before dispatch. We reply within business hours and ship worldwide from Cairo — GCC 2-3 days, Africa 3-6, Europe & US 3-5.

845970-B21 HPE QSFP28 to SFP28 Adapter (QSA28) 100G Port to 25G SFP28

HPE-branded SFP / SFP+ / SFP28 / QSFP+ / QSFP28 transceiver — fiber or DAC copper optic for HPE server NICs and switches.

Specifications

  • Part Number: 845970-B21
  • Brand: HPE
  • Form Factor: QSFP28 pluggable adapter, 24-pin, passive, no power/DOM electronics of its own
  • Optic Class: QSA28 form-factor converter — QSFP28 port to SFP28 module cage
  • Speed: 25GbE (HPE-documented). SFP28 module transmits on lane 1 only at 25Gbps; the other 3 lanes of the QSFP28 connector are not connected. Third-
  • Wavelength: 850nm (SR/MMF) / 1310nm (LR/SMF) / 1550nm (ER/SMF) / coded by class
  • Connector: LC duplex (most) / MPO (parallel-fiber QSFP) / RJ45 (BASE-T variants 1G)

Compatibility

HPE transceivers are firmware-keyed — third-party SFPs may work but typically trigger 'unsupported transceiver' warnings. For production use, deploy vendor-original.

  • HPE 40G/100G NICs (Mellanox ConnectX HPE-branded): ProLiant Gen10/Gen10 Plus/Gen11 with QSFP+/QSFP28 ports
  • HPE/Aruba 40G/100G switches: Aruba CX 8325/8400/10000 / FlexFabric 5945/12900 spine fabrics

Use Cases

Server NIC ports + ToR switch uplinks + SAN HBA ports. SR/MMF for in-rack and short-rack connections (cheaper). LR/SMF for cross-datacenter / cross-MDF runs. DAC copper for in-rack direct attach (lowest latency, lowest cost, no transceiver pair needed). AOC for medium-range (5-30m) where DAC max length insufficient.

Ships worldwide from ICD, Cairo, Egypt. All parts are tested, inspected, and backed by ICD's quality guarantee.

Product Compatibility
Part Numbers
Available in: New Renewed Refurbished
845970-B21 HPE QSFP28 to SFP28 Adapter (QSA28) 100G Port to 25G SFP28
845970-B21 HPE QSFP28 to SFP28 Adapter (QSA28) 100G Port to 25G SFP28
$565IndicativeRequest a live quote for your exact price · ships worldwide from ICD
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Frequently Asked Questions

What warranty comes with 845970-B21?

All ICD parts include a 30-day satisfaction guarantee minimum. Extended warranty depends on condition tier: NEW (OEM warranty), RENEWED (OEM refurbished warranty), REFURB (ICD 12-month), PULLED (ICD 90-day). Quote for 845970-B21 will specify exact warranty.

How do I know this part fits my server?

ICD presales engineering verifies compatibility before quoting. 845970-B21 compatibility is cross-checked against your server model + serial number when you submit your RFQ at https://icd3s.com/quote-request/.

What is the shipping lead time to my country?

Egypt: same-day Cairo (Maadi/Mohandseen pickup) or next business day. GCC (UAE/Saudi/Kuwait/Qatar/Bahrain/Oman): 2-4 business days via Aramex / DHL. All of Africa: 5-10 business days. USA/UK/EU: 5-7 business days. Exact transit time provided per quote.

What is the condition of this part?

ICD stocks four condition tiers: NEW (OEM factory-sealed), RENEWED (OEM refurbished with manufacturer warranty), REFURB (third-party tested with ICD warranty), and PULLED (lab-tested working, removed from operational systems). Each quote specifies the tier available.

How do I get a price?

ICD operates a quote-only model — prices are calculated per-customer based on supplier cost, condition tier, shipping country, urgency, and quantity. Prices are not published online. Submit part number + quantity + destination at https://icd3s.com/quote-request/ for a free quote within 24 hours.