845970-B21 HPE QSFP28 to SFP28 Adapter (QSA28) 100G Port to 25G SFP28
540-BDIV Dell Intel i350-T4V2 Quad Port 1GbE BASE-T PCIe Low Profile Adapter (JX1JV) 540-BDIV Dell Intel i350-T4V2 Quad Port 1GbE BASE-T PCIe Low Profile Adapter (JX1JV) $220IndicativeRequest a live quote for your exact price · ships worldwide from ICD
S2P30A HPE Aruba Networking 10G SFP+ SR LC 400m OM4 MMF C-Class Transceiver S2P30A HPE Aruba Networking 10G SFP+ SR LC 400m OM4 MMF C-Class Transceiver $137IndicativeRequest a live quote for your exact price · ships worldwide from ICD
PN: 845970-B21

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

ICD Verified — Tested & Warranted
Price Match Promise — Found it cheaper? We'll match it.

$229IndicativeRequest 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 3-4d, Africa 2-8d, EU 3-5d, US 5-7d.

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
$229IndicativeRequest a live quote for your exact price · ships worldwide from ICD
ICD
Servers. Scale. Support.
Your trusted source for 500,000+ enterprise data center parts. Dell, HPE, Lenovo, IBM, Cisco and 73 more brands.
Browse more: Networking › Network Cards (NICs) (2282 parts) | All Server Parts

Reviews

There are no reviews yet.

Be the first to review “845970-B21 HPE QSFP28 to SFP28 Adapter (QSA28) 100G Port to 25G SFP28”

Your email address will not be published. Required fields are marked *

Frequently Asked Questions

What warranty comes with 845970-B21?

Every ICD part except consumables carries a warranty: 1 year included on drives, power supplies and other wear parts, 3 years included on CPUs, memory, networking and optics, and extendable up to 10 years. The quote for 845970-B21 states its exact warranty term.

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 in Cairo Metro or 1-2 days. North Africa: 2-4 days. GCC (Saudi Arabia, UAE, Kuwait, Qatar, Bahrain, Oman) and Levant: 3-4 days. East Africa: 4-6 days. West Africa: 5-7 days. Southern Africa: 5-8 days. Europe: 3-5 days. North America: 5-7 days. Asia: 4-7 days. Express door-to-door from Cairo via DHL, Aramex or FedEx; customs clearance may add 1-3 days. Exact transit time is stated per quote.

What is the condition of this part?

ICD supplies 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.

Equivalent & Same-Spec Parts for 845970-B21

These parts belong to the same specification family and capacity class as 845970-B21 and are typically interchangeable, subject to your system's compatibility. ICD ships all of them from Cairo — GCC in 3–4 days, Africa in 2–8.

Part NumberProductBrand
684218-B21684218-B21 HPE Server ComponentHPE
727055-B21727055-B21 HP Ethernet 10GB 2-PORT 562SFP+ AdapterHPE
HPE-P22767-B21HPE-P22767-B21 HPE Intel E810-CQDA1 Ethernet 100GB 1-PORT QSFP28 OCP3 AdapterHPE
P14483-001P14483-001 HPE Intel E810-XXVDA2 Ethernet 10/25GB 2-PORT SFP28 Adapter (spare)HPE
P28788-B21HPE-P28788-B21 HPE Intel X710-DA2 Ethernet 10GB 2-PORT SFP+ OCP3 AdapterHPE
P41607-B21HPE-P41607-B21 HPE Intel E810-XXVDA2 Ethernet 10/25GB 2-PORT SFP28 OCP3 AdapterHPE
S2P30AS2P30A HPE Aruba Networking 10G SFP+ SR LC 400m OM4 MMF C-Class TransceiverHPE

Ships from Cairo to Saudi Arabia · UAE · Qatar · South Africa · Nigeria · Kenya — GCC 3–4 days, Africa 2–8 days, DHL door-to-door.

SKU: 845970-B21 Category: Tag:

Related products

Compatible With 61 Server Models

This part is verified compatible with the following systems (30 of 61 shown). Click any model for all of its verified-compatible parts.

Cross-Reference — Equivalent Parts

View the full multi-brand cross-reference table for SFP+ DP 10G NIC to compare Dell, HPE, Lenovo, Cisco, IBM and Supermicro equivalents.

View Full Cross-Reference Table for SFP+ DP 10G NIC →