ruba JL086A — X372 54VDC 680W Power Supply (PoE-capable, hot-plug)
What it is
JL086A isn’t a switch — it’s a power supply module.
It’s the Aruba X372 54VDC 680W hot-plug PSU used in PoE+-capable Aruba modular access switches, most commonly the 3810M and 2930M families. It provides system power and the 54V rail required for PoE, and it’s keyed so it only fits PoE-supported chassis.
Why buyers pick JL086A (plain English)
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Replacement or spare for PoE 3810M/2930M closets
The standard “field swap” PSU for those platforms. -
Adds redundancy
Many compatible switches support dual PSUs; adding JL086A gives power failover and load sharing. -
PoE-ready output
Supplies the 54VDC needed to run PoE+ endpoints through the switch. -
Hot-plug convenience
Swap or add without taking the switch down (when a second PSU is present).
60-second spec box (JL086A)
Type
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Hot-plug / redundant PSU for Aruba PoE-capable modular switches
Output power
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680W total
Output
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54VDC (system + PoE rail)
PoE capability (platform dependent)
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Enables PoE/PoE+ on supported switches
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PoE budget depends on chassis/model and PSU count
Input
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100–240VAC, auto-ranging, 50/60 Hz
Compatibility (common use)
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Aruba 3810M PoE+ models
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Aruba 2930M PoE+ models
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Other Aruba platforms that specify X372 PSUs
Keying
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PoE-keyed PSU — won’t fit non-PoE PSU bays
Where it fits (and when to choose something else)
Perfect for:
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Replacing a failed PSU in PoE-supported 3810M/2930M switches
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Adding a second PSU for redundancy in PoE closets
Choose something else if:
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You’re powering a non-PoE chassis → you need the X371 12VDC 250W PSU (JL085A)
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You need higher PoE budgets → look for higher-wattage PoE PSUs for that platform
TL;DR
JL086A is the Aruba X372 680W 54VDC hot-plug power supply for PoE-capable 3810M/2930M switches — used as a replacement or to add redundant, PoE-ready power in supported chassis.
| Product Description | HPE Aruba X372 - power supply - hot-plug / redundant - 680 Watt |
| Device Type | Power supply - hot-plug / redundant - plug-in module |
| Weight | 29.27 oz |
| Localization | English / United States |
| Input Voltage | AC 100-240 V |
| Output Voltage | 54 V |
| Power Capacity | 680 Watt |
| Dimensions (WxDxH) | 3.3 in x 1.6 in x 8.9 in |
| Designed For | HPE Aruba 2930M 24 Smart Rate POE+ 1-Slot, 3810M 48G PoE+ 1-slot Switch |

