Brocade part number 40G-QSFP-SR4 identifies the 40G-QSFP-SR4 - Brocade 40Gb/s 40GBase-SR4 Multi-Mode Fiber 100m 850nm MPO Connector QSFP+ Transceiver Module, an enterprise-grade Networking Devices unit appropriate for data-center, server-room, and workstation deployment. The component is intended for use in enterprise rack server and data-center deployments where matched-pair installation, hot-spare provisioning, or matched-lot procurement is required. Technical specifications include capacity of 40 GB, data rate of 40 Gb/s, network speed of 40 GbE, wavelength of 850 nm, range of 100 m, features of QSFP. Typical use cases include enterprise LAN core-distribution-access architecture, hyperconverged cluster east-west traffic, SAN fabric uplinks, and replacement of EOL/EOSL networking infrastructure under existing OEM warranty contracts. Pro Disk Network sources the 40G-QSFP-SR4 through reputable distribution channels and applies a verification check against the OEM compatibility matrix before each unit is added to active inventory. Each unit ships from a US fulfillment hub (Hillsboro OR, Atlanta GA, or Phoenix AZ) with same-day dispatch on in-stock orders before 3pm ET. Net 30 / Net 60 terms available for qualified business, government, and education accounts. 30-day Pro Disk Network functional warranty included; free US ground shipping on orders over $150.
The 40G-QSFP-SR4 is a Brocade networking devices component with capacity 40 GB, data rate 40 Gb/s, network speed 40 GbE. Pro Disk Network sells the 40G-QSFP-SR4 for $161.90 with same-day US shipping and a 30-day free return guarantee.
Reviewed By
Reviewed by:Pro Disk Network Engineering Team — . Specifications, compatibility, and pricing for the 40G-QSFP-SR4 verified against the manufacturer datasheet and our internal lab benchmarks.
Quick Answer: Is the 40G-QSFP-SR4 compatible with my switch?
Pro Disk Network validates every 40G-QSFP-SR4 against the target switch's published compatibility matrix before shipment. If you let us know your switch model and firmware version, we will confirm fitment and code the module appropriately (Cisco-coded, Juniper-coded, HPE-coded, etc.) at no extra charge.
How fast does the 40G-QSFP-SR4 ship?
If in stock, the 40G-QSFP-SR4 ships same business day on US orders placed before 2 pm ET. Most US ZIP codes receive next-business-day or 2-day delivery via FedEx/UPS Ground or Express. Bulk and project orders shipping in pallets are typically dispatched within 24-48 hours.
The 40G-QSFP-SR4 is deployed by US enterprises, MSPs, government, and education customers across multiple infrastructure scenarios. Below are the most common deployment patterns Pro Disk Network sees in real-world orders.
Spine-Leaf Fabric — Top-of-rack 25G/100G aggregation between leaf and spine switches. Match speed and form factor across both endpoints.
Server Uplink — 10G/25G server-to-leaf uplink — pair with matching DAC or AOC at the host NIC to avoid optic mismatch.
DCI (Data Center Interconnect) — Inter-DC routing or aggregation. LR4/LR8 transceivers for 10–80 km, ER4 for 40 km, ZR4 for coherent long-haul.
Campus Distribution — Catalyst-class campus distribution between IDF and MDF closets. PoE+ where wireless APs and IP phones share infrastructure.
New, Bulk, or Refurbished — Choosing Your Tier
Pro Disk Network offers the 40G-QSFP-SR4 across three procurement tiers. Each tier is fully functional and warranted; the choice comes down to budget, warranty length, and whether the deployment is production-critical or capacity-expansion.
Tier
Discount vs OEM List
Warranty
Best For
New (Sealed OEM)
25–40%
Brocade manufacturer warranty (1–5 yr)
Production-critical first-tier
New (Bulk OEM)
50–65%
3-year Pro Disk Network warranty
New cluster builds, secondary tier
Refurbished
75–85%
12-month advance replacement
Capacity expansion, lab, dev/test, EOL refresh
Bulk & Volume Pricing for 40G-QSFP-SR4
Ships from our US warehouse — same-day US dispatch on orders placed before 2pm ET. Net 30 terms available for verified businesses, government and education.
Volume discounts on the 40G-QSFP-SR4 are automatic at checkout. Net 30 terms available for verified businesses, government, and education. Email sales@prodisknetwork.com for orders above 100 units.
Quantity
Discount
Unit Price
1
0%
$161.90
5+
4%
$155.42
10+
8%
$148.95
25+
13%
$140.85
50+
18%
$132.76
100+
23%
$124.66
What is the 40G-QSFP-SR4?
The 40G-QSFP-SR4 is a Brocade enterprise networking device with capacity 40 GB and data rate 40 Gb/s, manufactured by Brocade. Pro Disk Network ships this part new and certified-refurbished from our US warehouse with same-day dispatch on orders placed before 3 PM ET, backed by a 30-day return guarantee.
Pros & Cons of 40G-QSFP-SR4
Pros
Drop-in replacement for failed line cards or transceivers
Bulk-pack pricing for multi-rack deployments
Coding to OEM TLV is verified before shipping
Cons
Refurbished switches may show minor rack-rail wear
Power supplies sold separately on certain SKUs
Long-haul ZR4/CFP4 modules subject to export-control screening
Frequently Asked Questions about 40G-QSFP-SR4
Is the 40G-QSFP-SR4 a genuine Brocade part?
Yes. Pro Disk Network sources every 40G-QSFP-SR4 as factory-original Brocade inventory verified against the manufacturer parts registry before listing. New units arrive sealed in OEM packaging; refurbished units are pulled from decommissioned Brocade servers, surface-tested, and re-warranted by Pro Disk Network for 12 months.
Is the 40G-QSFP-SR4 compatible with my switch?
Pro Disk Network validates every 40G-QSFP-SR4 against the target switch's published compatibility matrix before shipment. If you let us know your switch model and firmware version, we will confirm fitment and code the module appropriately (Cisco-coded, Juniper-coded, HPE-coded, etc.) at no extra charge.
How fast does the 40G-QSFP-SR4 ship?
If in stock, the 40G-QSFP-SR4 ships same business day on US orders placed before 2 pm ET. Most US ZIP codes receive next-business-day or 2-day delivery via FedEx/UPS Ground or Express. Bulk and project orders shipping in pallets are typically dispatched within 24-48 hours.
What is the warranty on the 40G-QSFP-SR4?
New 40G-QSFP-SR4 units carry the full Brocade manufacturer warranty (typically 1 to 5 years depending on product line). Refurbished and bulk-OEM units include a Pro Disk Network advance-replacement warranty (12 months refurbished, 36 months new bulk). DOA replacement is free within 30 days of receipt.
Do you offer bulk pricing for the 40G-QSFP-SR4?
Yes. Pro Disk Network offers automatic volume discounts at 10, 25, 50, and 100+ unit tiers. Net 30 terms are available for verified businesses, government, and education buyers. Email sales@prodisknetwork.com with the quantity and target ship date for a quote within one business day.
Pro Disk Network Buyer’s Guide: Networking Devices
Optic Coding, Vendor Lock-In, and Multi-Vendor Compatibility
Networking optics — SFP, SFP+, QSFP+, QSFP28 — are physically interoperable across vendors but logically restricted by firmware coding. The 40G-QSFP-SR4 is coded for a specific vendor family at our factory step before shipping, which preserves the OEM warranty workflow and allows the optic to be recognised without ‘service unsupported-transceiver’ CLI overrides. Mixing third-party optics with same-vendor optics in the same chassis is safe; mixing across vendor codings sometimes triggers warnings in the switch log.
Bandwidth Sizing for Spine-Leaf, EVPN-VXLAN, and Hyperconverged Storage
For EVPN-VXLAN overlays, the 40G-QSFP-SR4 carries the underlay tunnels in addition to the workload traffic. Plan for VXLAN encapsulation overhead (50 bytes) plus MTU headroom; set the underlay MTU to 9216 (jumbo frames) and the overlay MTU to 9000. Make sure both the 40G-QSFP-SR4 and the connected NICs support jumbo frames — some older NICs cap at 9000-byte payloads even when jumbo-enabled.