GLC-SX-MM — Cisco 1000BASE-SX SFP Transceiver Module (MMF, 850nm, 550m)
MPN: GLC-SX-MM|By: Cisco

Starting from
$24
Indicative — final pricing confirmed with your quote.
In Stockships worldwide
- Condition:
- New — authorized channel
- Warranty:
- Full manufacturer warranty
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Bulk order? Request volume pricing
Product overview
This is the Cisco 1000BASE-SX SFP Transceiver Module (MMF, 850nm, 550m), order code GLC-SX-MM. Reach, fibre type and connector have to agree along the whole path, and a patch panel in the middle counts. Send the run length and the fibre already installed and we will match it.
The listed price is per unit and current; tell us the quantity and we will confirm what it holds at before you raise the order.
Featuring
- Manufacturer
- Cisco
Physical characteristics
- Transceiver Type
- SX
- Product Type
- Transceivers & Cables
- Expedited shipping options are available — rates confirmed with your quote.
- Purchase orders accepted from qualified institutions.
- Compatibility is validated against your server platform before dispatch. Send us the model and we will confirm support.
Specifications for GLC-SX-MM as published by Cisco. Where a value is absent it is because we could not verify it, not because it does not exist — ask and we will check.
Where the Cisco GLC-SX-MM is deployed
- Swapping out a failed transceiver for GLC-SX-MM under change control
- Cabling a new rack into an installed fabric
- Replacing an optic that has started erroring
Who this part is for
- Integrators supplying the passive layer with a switch order
- Data centre teams cabling a new rack to an installed fabric
- Procurement buying optics in quantity for a scheduled build
What you get ordering this from us
Ordered by part number
The order is placed against GLC-SX-MM, not against a description of it, so there is no room for a substitution you did not agree to.
Reach checked against the run
Fibre type, connector and distance are checked together, so the optic suits the path and not just the port.
Compatibility checked
We confirm the part is supported on your platform before it ships, rather than leaving the check to you.
Questions buyers ask about this part
- Is GLC-SX-MM genuine and is the warranty intact?
- Yes. It ships new in Cisco packaging, which is what keeps the warranty and the firmware entitlement valid. Anything we cannot supply that way we tell you about before you order.
- Will GLC-SX-MM work in my server?
- Tell us the switch at both ends of the link. Optics are frequently vendor-coded, so a module that is electrically correct can still refuse to come up; we confirm the coding for both ends before it ships.
- Do you accept purchase orders and quote at volume?
- Yes. We quote against a purchase order and hold the price for the quote period, with tiered rates at quantity. Net terms are available once the account is approved.
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Specifying a system, not just the part?
Optics and cabling are part of the fabric spec on a cluster build — both ends and the switch have to agree.
