Sourced for enterprise IT teams, the Brocade 40G-QSFP-LR4-INT (40G-QSFP-LR4-INT - Brocade 40Gb/s 40GBase-LR4 Single-Mode Fiber 10km 1310nm Duplex LC Connector QSFP+ Transceiver Module) is a Transceiver component appropriate for new-build, expansion, or warranty-replacement procurement. Technical specifications include capacity of 40 GB, data rate of 40 Gb/s, network speed of 40 GbE, wavelength of 1310 nm, range of 10 km, features of QSFP. Appropriate for enterprise core-aggregation tier, hyperscale leaf-spine fabric expansion, EVE-NG / GNS3 lab environments at scale, and matched-pair high-availability switching deployments. Pro Disk Network supplies the 40G-QSFP-LR4-INT to US business buyers. Stocked units ship same-day on in-stock orders placed before 3pm ET. Pro Disk Network applies a 90-day functional warranty. Free US ground shipping on orders over $150; same-day expedited (UPS Next Day Air, FedEx Priority) available at checkout.
The 40G-QSFP-LR4-INT is a Brocade transceiver component with capacity 40 GB, data rate 40 Gb/s, network speed 40 GbE. Pro Disk Network sells the 40G-QSFP-LR4-INT for $4,267.71 with same-day US shipping and a 30-day return guarantee.
Reviewed By
Reviewed by:Pro Disk Network Engineering Team — . Specifications, compatibility, and pricing for the 40G-QSFP-LR4-INT are shown on this page.
Trust Signals
US-based LLC — 7345 W Sand Lake Rd, STE 210, Office 3208, Orlando, FL 32819
Same-Day US Shipping — orders before 3pm ET ship today via UPS
30-Day Returns — pre-paid label on DOA and defective items
Quick Answer: Is the 40G-QSFP-LR4-INT compatible with my switch?
Pro Disk Network validates every 40G-QSFP-LR4-INT 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-LR4-INT ship?
Pro Disk Network dispatches the 40G-QSFP-LR4-INT same-day on orders confirmed before 3 pm ET. Multi-pallet projects requiring crating ship within 2 business days. International shipping (Canada, Mexico, EU, APAC) takes 3-7 business days via DHL Express or FedEx International Priority.
The 40G-QSFP-LR4-INT 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.
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.
Branch / Edge — Smaller form-factor switches and routers for branch sites. SD-WAN-compatible or static-VPN-attached as the architecture dictates.
What is the 40G-QSFP-LR4-INT?
The 40G-QSFP-LR4-INT is a Brocade network interface module 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-LR4-INT
Pros
Matched-pair option for redundant link orders
Cabling and DAC/AOC labels clearly mark optic class
Cons
DAC cables capped at 7 m — use AOC or fibre for longer runs
SR optic vs LR optic confusion — verify before ordering
Refurbished tier optic does not include retail vendor packaging
Frequently Asked Questions about 40G-QSFP-LR4-INT
Is the 40G-QSFP-LR4-INT a genuine Brocade part?
Yes. Pro Disk Network sources every 40G-QSFP-LR4-INT as factory-original Brocade inventory. 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 90 days.
Is the 40G-QSFP-LR4-INT compatible with my switch?
Pro Disk Network validates every 40G-QSFP-LR4-INT 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-LR4-INT ship?
Pro Disk Network dispatches the 40G-QSFP-LR4-INT same-day on orders confirmed before 3 pm ET. Multi-pallet projects requiring crating ship within 2 business days. International shipping (Canada, Mexico, EU, APAC) takes 3-7 business days via DHL Express or FedEx International Priority.
What is the warranty on the 40G-QSFP-LR4-INT?
New 40G-QSFP-LR4-INT 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 (90 days refurbished). DOA replacement is free within 30 days of receipt.
Do you offer bulk pricing for the 40G-QSFP-LR4-INT?
Email sales@prodisknetwork.com with the quantity and target ship date for a quote within one business day.
Optic Coding, Vendor Lock-In, and Multi-Vendor Compatibility
If you are running a multi-vendor leaf-spine architecture (Arista leaves and Cisco spines, for example), order optics coded for each endpoint separately. Optics in DAC and AOC cables are factory-coded to each end and cannot be flashed in-field. Plan the coding split at design time and document it in your network drawings.
Bandwidth Sizing for Spine-Leaf, EVPN-VXLAN, and Hyperconverged Storage
Sizing network bandwidth for a leaf-spine fabric using the 40G-QSFP-LR4-INT starts with the workload mix. For general-purpose virtualisation, plan 10G server-to-leaf, 25G or 40G leaf-to-spine; oversubscription up to 4:1 is acceptable. For hyperconverged storage (vSAN, Ceph, Storage Spaces Direct), plan 25G server-to-leaf at minimum, 100G leaf-to-spine, oversubscription 1.5:1 maximum. East-west traffic dominates in HCI clusters and starves on oversubscribed fabrics.