10G SFP+ SR (300m) Optical Transceiver Module
Product Overview
The Apex 10G SFP+ SR module is the short reach 10 Gigabit interface, an 850nm VCSEL transmitter and PIN receiver carrying 10GBASE-SR over multimode fiber to 300m on OM3 and 400m on OM4. It is the highest volume 10G optic in data centres, and usually the lowest cost per port as well.
SR is the part that connects servers, storage and top of rack switches inside a hall, and it is also used for short backbone runs inside a building where multimode was installed. Because it runs on multimode, the cable and patch cords cost less than single mode equivalents, which is why SR is the default for spans under 300m rather than a longer reach part.
Every module is burnt in and tested for optical power, extinction ratio and error rate, reports live readings through DDM, and is coded for the switch, adapter or storage platform you name. The SR grade is held in stock for same day quoting, and the LR, ER and ZR grades are available from the same line for longer spans.
Key Features
- 9.95Gbps to 10.3Gbps line rate compliant with 10GBASE-SR
- 850nm VCSEL transmitter with PIN receiver
- 300m reach on OM3 and 400m on OM4 multimode fiber
- SFP+ MSA hot pluggable package, duplex LC interface
- Digital Diagnostic Monitoring (DDM/DOM) with live optical readings
- Low power consumption, single 3.3V supply
- Stocked for same day quoting, coded for your platform
- RoHS compliant, tested unit by unit before shipment
Technical Specifications
| Specification | Detail |
|---|
| Part Number | APX-SFP-10G-300M-SR |
| Manufacturer | Apex |
| Data Rate | 9.95Gbps to 10.3Gbps |
| Form Factor | SFP+, hot pluggable |
| Standard | 10GBASE-SR / 10GBASE-SW |
| Wavelength | 850nm |
| Maximum Reach | 300m OM3, 400m OM4, 82m OM2 |
| Fiber Type | Multimode Fiber (MMF) |
| Connector Type | LC duplex |
| Transmitter | 850nm VCSEL |
| Receiver | PIN photodiode |
| DDM / DOM | Supported |
| Compliance | SFP+ MSA, IEEE 802.3ae, RoHS |
| Temperature | 0 to 70C commercial, -40 to 85C industrial on request |
Applications
In Rack and Row Server Links
Connects servers, storage arrays and top of rack switches at 10G on the OM3 or OM4 patch cords already installed in the hall.
Data Centre Top of Rack Uplinks
Provides the short 10G uplink from a top of rack switch to the row or end of row aggregation switch inside the 300m budget.
Building Backbone on Multimode
Links floors, cabinets and small equipment rooms at 10G where the riser is multimode and the span is under 300m.
Compatibility
10G SFP+ SR modules are coded to the host platform you specify, including switches, server adapters, storage systems and media converters, and are tested on live ports before shipment. Reach depends on the fiber grade and the connector and patch cord quality, so on runs near the limit we confirm the fiber type and measured loss before quoting.
Related Products
Frequently Asked Questions
How far does a 10G SR module reach?
300m over OM3 multimode and 400m over OM4. On older OM2 cable the practical limit is around 82m, and for those runs the LRM grade is the better fit.
SR or LR for a data centre link?
Under 300m on multimode, SR is the cheaper and more common choice. Over multimode limits, or on single mode cable, LR at 10km is the standard part.
Can SR modules run on single mode fiber?
No. SR is an 850nm multimode interface and needs multimode fiber at both ends. Use LR, ER or ZR for single mode spans.
Are 10G SR modules in stock?
Yes. The 850nm SR grade is held in stock and quoted the same day, in commercial and industrial temperature versions.
Why Choose Apex
- Optical engineering support and supply from 1.25G to 800G, including the full 10G SFP+ range.
- Stock on the SR grade so data centre replacements ship without a long lead time.
- Every module is tested for optical power, extinction ratio and error rate before shipment.
- Backed by a 3 year warranty and technical support before and after the sale.
