4Y37A78835 — Lenovo ThinkSystem RAID 540-16i PCIe Gen4 12Gb Adapter
MPN: 4Y37A78835|By: Lenovo

In Stockships worldwide
- Condition:
- New — authorized channel
- Warranty:
- Full manufacturer warranty
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Bulk order? Request volume pricing
Product overview
Lenovo lists 4Y37A78835 as a ThinkSystem RAID 540-16i PCIe Gen4 12Gb Adapter. Cache and its battery or flash backup decide what happens to in-flight writes when the power goes. Tell us whether the backup module is present and we will quote it if it is not.
If the part is wrong for your platform we will say so and suggest the one that is, which is cheaper for both of us than a return.
Featuring
- Capacity
- 12Gb
- Generation
- Gen4
- Manufacturer
- Lenovo
Interfaces / Ports
- Drive Interface
- PCIe
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.
Published specifications for 4Y37A78835. Anything not listed here we will confirm against the manufacturer's documentation before quoting — we would rather answer the question than let you assume.
Where the Lenovo 4Y37A78835 is deployed
- Like-for-like replacement of 4Y37A78835 in an existing system
- Moving from hardware RAID to pass-through for a software layer
- Adding ports beyond what the system board provides
Who this part is for
- Procurement replacing a failed controller under a production fault
- Engineers adding capacity that needs more ports than the board provides
- Storage teams replacing a controller without losing array metadata
What you get ordering this from us
Ordered by part number
Quoted and supplied against 4Y37A78835 specifically, so what arrives is what your build sheet asks for.
Cache backup quoted with it
The battery or flash backup module is priced alongside the card rather than discovered missing at install.
No substitutions without asking
If we cannot supply the exact code we tell you what we can supply and why, rather than shipping an equivalent and letting you find out.
Questions buyers ask about this part
- Is 4Y37A78835 genuine and is the warranty intact?
- Yes. It ships new in Lenovo 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 4Y37A78835 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. Purchase orders are accepted from qualified organisations, net terms are available on approval, and tiered pricing applies at quantity. Tell us how many you need.
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Specifying a system, not just the part?
Most parts we ship go into a system we also build and support.
