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Silver metal rectangular ATX power supply unit with fan grille and rear connector panel

HP

HP 650W 80+ Silver ATX Power Supply YM-2651B

SKU CH-10QW-73Q7M

Delivers 650 W with 80+ Silver efficiency for compatible HP 5800, 5900, 5820, 5830 and 5920 series switches

  • TypeATX
  • 80+ Silver efficiency reduces energy waste
  • 650W output powers demanding network switches
  • Wide 100-240V input suits global deployments
  • Hot-plug design enables replacement without downtime
  • 12V rail delivers 52.9A for stable performance

HP 650W 80+ Silver ATX PSU

This HP 650W ATX power supply carries 80+ Silver certification and accepts a universal 100-240V 50-60Hz input. It delivers a 12V rail rated at 52.9A alongside a 5Vsb rail at 3A. The unit is designed as a direct replacement for the A58x0AF part used in HP networking equipment.

Sustained load behaviour

With 80+ Silver efficiency the unit maintains its rated 650W output while keeping waste heat lower than Bronze alternatives under continuous demand. Hot-plug capability allows the supply to be swapped without powering down the chassis. The 12V rail provides stable current for switch line cards during prolonged traffic bursts.

Upgrade context

It replaces the A58x0AF supply in HP 5800, 5900, 5820AF-24XG, 5920AF-24XG and A5830AF-48G switches. The efficiency gain is worthwhile when the chassis runs 24/7 and electricity cost matters. Buyers needing redundant supplies for non-HP hardware or higher wattage than 650W should look elsewhere.

Highlights

  • 80+ Silver efficiency reduces energy waste
  • 650W output powers demanding network switches
  • Wide 100-240V input suits global deployments
  • Hot-plug design enables replacement without downtime
  • 12V rail delivers 52.9A for stable performance

Specifications

TypeATX

Questions about this item

How much heat does the 80 Plus Silver 650 W unit add when running a 5800 Series switch 24/7?

At typical load the supply meets 80 Plus Silver efficiency, so waste heat stays low enough for the switch’s own fan curve to handle without extra cooling.

What existing switch hardware is required to use the YM-2651B module?

It is a hot-plug replacement for the A58x0AF unit in HP 5800, 5900, 5820AF-24XG, 5920AF-24XG and A5830AF-48G switches.

Will the 12 V 52.9 A output work with older 5800 Series chassis I already own?

Yes — the module is listed as a direct replacement for those chassis, so the 12 V rail delivers the same 52.9 A the original supply provided.

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