# StarTech.com MSA UNCODED Compatible QSFP+ Module - 40GBASE-SR4 - 40GE Gigabit Ethernet QSFP+ Multi Mode Fiber (MMF) - 300m

**Manufacturer:** STARTECH.COM  
**MPN:** `QSFP-40G-ESR4-ST`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | STARTECH.COM |
| Manufacturer name | STARTECH.COM |
| Manufacturer | STARTECH.COM |
| Extra Product Name | StarTech.com MSA UNCODED Compatible QSFP+ Module - 40GBASE-SR4 - 40GE Gigabit Ethernet QSFP+ Multi Mode Fiber (MMF) - 300m |
| Weight | 1 |
| WeightUnit | lbs |
| countryOfOrigin | China |
| moq | 1 |
| MPN | QSFP-40G-ESR4-ST |
| multiple | 1 |
| qtyInStock | In Stock |
| SKU | 6YN033 |
| tierMinQty1 | 1 |
| tierPrice1 | 329.51 |
| Manufacturer Part Number | QSFP-40G-ESR4-ST |
| Manufacturer Website Address | http://www.startech.com |
| Brand Name | StarTech.com |
| Product Name | MSA Compliant QSFP+ Transceiver Module - 40GBase-SR4 |
| Product Type | QSFP+ |
| Application/Usage | Optical Network, Data Networking |
| Total Number of Ports | 1 |
| Connector Type | LC |
| Interfaces/Ports Details | 1 x LC 40GBase-SR4 Network |
| Media Type Supported | Optical Fiber |
| Fiber Mode Supported | Multi-mode |
| Ethernet Technology | 40 Gigabit Ethernet |
| Network Technology | 40GBase-SR4 |
| Form Factor | Hot-swappable |
| Compatibility | MSA Compliant |
| Country of Origin | China |
| Limited Warranty | Lifetime |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| PCNation | 6YN033 | 329.51 | 1 | None | 1 |
| Grand and Toy | QSFP-40G-ESR4-ST |  |  | None | 1 |
| Zoro | G2978424 | 469.33 | 1 | None | 1 |
| Consutronix | 6YN033 | 266.22 | 1 | None | 1 |
| unbeatablesale.com | DAHD111165 | 405.36 | 1 | None | 1 |
| barcodesinc.com | QSFP-40G-ESR4-ST | 418.99 | 1 | None | 1 |

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Structured data: `/python/html6/product/500/110000000/110173000/part_--QSFP40GESR4ST---STARTECHCOM--2ceb6670bc.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp