# Cisco 40GBASE-LR4 QSFP+ Module for SMF

**Manufacturer:** CISCO  
**MPN:** `QSFP-40GE-LR4-RF`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | CISCO |
| Manufacturer name | CISCO |
| Manufacturer | CISCO |
| Extra Product Name | Cisco 40GBASE-LR4 QSFP+ Module for SMF |
| Weight | 2 |
| WeightUnit | lbs |
| moq | 1 |
| MPN | QSFP-40GE-LR4-RF |
| multiple | 1 |
| qtyInStock | -2 |
| SKU | YW5136 |
| tierMinQty1 | 1 |
| tierPrice1 | 5935.89 |
| Manufacturer Part Number | QSFP-40GE-LR4-RF |
| Manufacturer Website Address | http://www.cisco.com |
| Brand Name | Cisco |
| Product Model | QSFP-40GE-LR4 |
| Product Name | 40GBASE-LR4 QSFP+ Module for SMF |
| Product Condition | Refurbished |
| Product Type | QSFP+ |
| Application/Usage | Data Networking, Optical Network |
| Interfaces/Ports Details | 1 x LC Duplex 40GBase-LR4 Network |
| Media Type Supported | Optical Fiber |
| Fiber Mode Supported | Single-mode |
| Ethernet Technology | 40 Gigabit Ethernet |
| Network Technology | 40GBase-LR4 |
| Maximum Data Transfer Rate | 40 |
| Form Factor | Hot-swappable |
| Height | 0.5 |
| Width | 0.7 |
| Depth | 2.9 |
| Compatibility | MSA Compliant |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| PCNation | YW5136 | 5935.89 | 1 | None | 1 |
| Grand and Toy | QSFP-40GE-LR4-RF | 7708.89 | 1 | None | 1 |
| Consutronix | YW5136 |  |  | None | 1 |
| transceiversdirect.com | QSFP-40GE-LR4-RF | 5581.82 | 1 | None | 1 |

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Structured data: `/python/html6/product/500/80500000/80610500/part_--QSFP40GELR4RF---CISCO--2c19299e67.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp