Aruba JL085A — X371 12VDC 250W Power Supply (for non-PoE 3810/2930M)
What it is
JL085A isn’t a switch SKU — it’s a power supply.
Specifically, it’s the Aruba X371 12VDC 250W hot-plug power supply used in non-PoE Aruba modular access switches like the 3810M and 2930M families. It provides system power only (no PoE output) and is keyed for non-PoE chassis.
Why buyers pick JL085A (plain English)
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Replacement or spare for non-PoE switches
The go-to PSU when a 3810M/2930M non-PoE unit needs a swap. -
Adds PSU redundancy
Many compatible chassis take dual PSUs — adding a JL085A gives power failover. -
Hot-plug convenience
Swap or add power without taking the switch down (when the chassis supports dual PSUs). -
Correct keying for non-PoE closets
It physically won’t fit PoE PSU slots, preventing mismatches.
60-second spec box (JL085A)
Type
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Hot-plug / modular power supply for Aruba non-PoE switches
Output power
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250W
Output
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12VDC system power (no PoE)
Input
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100–240VAC, auto-ranging
Compatibility (common use)
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Aruba 3810M non-PoE models
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Aruba 2930M non-PoE models
Role in chassis
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Primary PSU or redundant secondary PSU (depending on installed count)
Where it fits (and when to choose something else)
Perfect for:
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Replacing a failed PSU in a compatible non-PoE 3810M/2930M
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Adding redundancy to a single-PSU non-PoE switch
Choose something else if:
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You’re powering PoE switches → you need the 54V PoE PSU (not JL085A)
TL;DR
JL085A is the Aruba X371 250W 12V power supply for non-PoE 3810M/2930M switches — used as a replacement or to add redundant power in supported chassis.

