654873-003 — HPE Flash-Backed Write Cache (FBWC) 5.4V Capacitor Battery Pack w/ 36-inch Cable (for Smart Array P420/P421/P222 Gen8 controllers)
MPN: 654873-003|By: HPE

Starting from
$105
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
Part number 654873-003 identifies this HPE flash-backed write cache (FBWC) 5.4V capacitor battery pack w/ 36-inch cable (for smart array P420/P421/P222 Gen8 controllers). Controller choice ties to firmware and driver support on the host, and a card that fits the slot may still be unsupported by the platform. We confirm the firmware and driver path alongside the hardware.
Tell us the deadline you are working to and we will say whether it is achievable before you commit to it internally.
Featuring
- Generation
- Gen8
- Manufacturer
- HPE
Physical characteristics
- Product Type
- RAID Controllers & HBAs
- 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 654873-003 as published by HPE. 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 HPE 654873-003 is deployed
- Swapping out a failed RAID controller for 654873-003 under change control
- Moving from hardware RAID to pass-through for a software layer
- Replacing a failed controller without losing the array
Who this part is for
- Storage teams replacing a controller without losing array metadata
- Teams moving from RAID to a pass-through HBA for a software-defined layer
- Procurement replacing a failed controller under a production fault
What you get ordering this from us
Ordered by part number
654873-003 is what is quoted and 654873-003 is what ships; where an alternate code is genuinely the same part we name it rather than swap it silently.
Volume pricing
The listed price is per unit; tiered pricing applies at quantity and purchase orders are accepted.
Cache backup quoted with it
The battery or flash backup module is priced alongside the card rather than discovered missing at install.
Questions buyers ask about this part
- Is 654873-003 genuine and is the warranty intact?
- Yes. It ships new in HPE 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 654873-003 work in my server?
- Send us the server model or service tag and we will confirm before you order. Part numbers alone do not always settle it — firmware revision and platform generation matter, and this is the check that prevents a return.
- Do you accept purchase orders and quote at volume?
- Yes — POs from qualified organisations, net terms on approval, and banded pricing once the quantity is worth banding. Send the number and we will price it properly.
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