# Cisco SFP+ 10GBASE-BX40-U network transceiver module Fiber optic 10000 Mbit/s SFP+ 1270 nm

The Cisco SFP-10G-BX40D-I and SFP-10G-BX40U-I SFPs operate on a single strand of standard SMF. A SFP-10G-BX40D-I device is always connected to a SFP-10G-BX40U-I device with a single strand of standard SMF with an operating transmission range up to 40 km. The communication over a single strand of fiber is achieved by separating the transmission wavelength of the two devices. SFP-10G-BX40D-I transmits a 1330-nm channel and receives a 1270-nm signal. The SFP-10G-BX40U-I transmits at a 1270-nm wavelength and receives a 1330-nm signal. The SFP-10G-BX40D-I and SFP-10G-BX40U-I SFPs support digital optical monitoring (DOM) functions according to the industry-standard SFF-8472 multisource agreement (MSA). This feature gives the end user the ability to monitor real-time parameters of the SFP, such as optical output power, optical input power, temperature, laser bias current, and transceiver supply voltage.

## Details

- **Price:** 13036.32 AUD
- **Vendor:** CISCO
- **Tags:** Dicker, Ingram, Network Transceiver Modules

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 13036.32 AUD | In stock |

## Images

- Cisco SFP+ 10GBASE-BX40-U network transceiver module Fiber optic 10000 Mbit/s SFP+ 1270 nm

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> Source: [TechForGood](https://techforgood.com.au/products/cisco-sfp-10gbase-bx40-u-network-transceiver-module-fiber-optic-10000-mbit-s-sfp-1270-nm-sfp-10g-bx4)
> Updated: 2026-08-07