Understanding the "-O" Suffix in Meraki Part Codes: What It Means for Your Orders
When ordering Cisco Meraki equipment, you may notice that some part codes end in "-O", for example PWR-C1-350WACP-M-O. For many buyers, that small suffix raises questions. Is it a different version of the product? Does it signal a change in the hardware itself? In this post we'll clarify what the "-O" suffix means and why it matters when you order Meraki accessories and spares.
If you've previously read our guide on what the "=" sign means in Cisco part codes, this will feel familiar. Meraki has effectively adopted its own version of the same idea.
What Does the "-O" Suffix in Meraki Part Codes Mean?
The "-O" at the end of a Meraki part code indicates that the item is being ordered as a standalone spare or optional accessory, rather than as part of a bundled hardware build.
The "O" is widely understood to stand for "optional", reflecting that these are components you can order on their own when you need a replacement or an addition.
It's a logistical indicator used within Cisco Meraki's ordering system to differentiate between:
- Accessories supplied as part of a complete switch or appliance order
- The same accessories ordered separately for replacement, spares, or expansion
In other words, it serves the same purpose for Meraki that the "=" symbol serves for traditional Cisco part numbers.
Which Meraki Parts Use the "-O" Suffix?
So far the "-O" convention appears mainly on accessories that usually ship bundled with a switch but can also be bought on their own, such as power supplies and stacking cables. For example:
- Power supplies: PWR-C1-715WACP-M-O, PWR-C5-1KWAC-M-O, PWR-C5-600WAC-M-O
- Stacking cables: STACK-T1-1M-M-O, STACK-T3A-3M-M-O, STACK-T4-50CM-M-O
In each case, the base part (for example PWR-C1-715WACP-M) is the version supplied with a new unit, and the "-O" version is the same item ordered separately.
Example: Ordering a Meraki Power Supply
Here's how it works in practice:
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Initial Order (Without "-O") When you order a new Meraki switch with redundant power, the power supplies are included as part of that configuration. Their part numbers do not carry the "-O" suffix, because they're part of the original build.
-
Spare or Optional Order (With "-O") Later, you need an extra or replacement power supply. In this case the part number includes "-O" (for example PWR-C1-715WACP-M-O), signalling that it's being ordered as a standalone optional component.
Tip: There is no physical difference between the bundled accessory and its "-O" counterpart. The hardware, performance, and compatibility are identical.
The "-O" Suffix Doesn't Appear on the Hardware
When your power supply or stacking cable arrives, you won't see "-O" printed on the device or its label. It's strictly an ordering convention, not a product marking. Whether your order includes the suffix or not, the hardware you receive is identical.
Does the "-O" Affect Compatibility or Functionality?
No. The "-O" suffix has no effect on compatibility, performance, or quality. It's used purely for administrative and ordering purposes, and the unit will operate exactly the same in your network.
Why Understanding Meraki Part Codes Matters
These small details can streamline your procurement and avoid confusion when you order. At XS Network Tech, our team makes sure you get the correct part codes for your Meraki, Cisco, Aruba, and Juniper equipment, whether you need bundled components or standalone spares.
Need to confirm the right spare or optional accessory for your setup? Contact XS Network Tech for expert advice and quick, accurate sourcing.
In Conclusion
In Meraki part numbers, the "-O" suffix simply indicates an optional or spare accessory ordered on its own. It does not affect performance or hardware functionality. It's purely for Cisco Meraki's ordering and inventory purposes, much like the "=" symbol on traditional Cisco parts.
Related Reading
- Understanding the "=" Sign in Cisco Part Codes
- What Is Compatible Equipment and Should You Make the Switch?
Frequently Asked Questions (FAQ)
Q1: What does "-O" mean in Meraki part numbers? It identifies an optional or spare accessory ordered on its own. There's no difference in hardware or performance compared with the bundled version.
Q2: Will the "-O" appear on my Meraki hardware? No. It's used internally for order tracking only, not on the physical device.
Q3: Can I use a part code with "-O" interchangeably with one without? Yes. The items are identical, so you can safely use either version in your network.
Q4: Is "-O" the same as Cisco's "=" sign? Functionally, yes. Both are ordering conventions that mark an item as a standalone spare or optional part rather than a hardware difference.