Dell PowerEdge ReadyRails Sliding 4U (R840, R940)
By: Dell Technologies

Starting from
$255
Indicative — final pricing confirmed with your quote.
In Stockships worldwide
- Condition:
- New — authorized channel
- Warranty:
- Full manufacturer warranty
Prefer your own inbox? Email us about this part
Bulk order? Request volume pricing
Product overview
Dell PowerEdge ReadyRails Sliding 4U (R840, R940). ReadyRails for 12G to 14G PowerEdge — platform-specific, and the wrong kit stops an install.
Featuring
- Chassis Height
- 4U
- Rack Mounting
- Tool-less square hole
- Product Line
- PowerEdge Rail Kit Legacy
- Condition
- Genuine Dell part
- Platform Qualification
- Dell PowerEdge 12G – 14G
Physical characteristics
- Rail Type
- Sliding
- Product Type
- Rail Kit
Miscellaneous
- Compliance Standards
- RoHS, WEEE
- 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.
Full published specifications for the Dell PowerEdge ReadyRails Sliding 4U (R840, R940), as supplied. Confirm platform support before ordering — compatibility validation against your specific server model is part of every order.
Where the PowerEdge Rail Kit Legacy ReadyRails Sliding 4U (R840, R940) is deployed
- Capacity expansion on existing systems
- Like-for-like replacement and spares holding
- New build-outs specified around a fixed platform
Questions buyers ask about this part
- Will this rail kit fit my server?
- It is a sliding kit for 4U chassis, qualified for Dell PowerEdge 12G – 14G. Rail kits are platform-specific and a kit for the wrong chassis height will not carry the server — this is the part that most often stops an installation on the day. It mounts to tool-less square hole. Send us the exact server model and rack type and we will confirm before dispatch.
- Is this Dell Technologies part genuine, and is the warranty intact?
- Yes. We supply through authorized distribution only, so the part carries the full Dell Technologies manufacturer warranty and its firmware update path stays supported. No grey-market stock, no re-labelled drives, no voided warranties.
- Do you offer volume pricing and accept purchase orders?
- The listed price is per unit and indicative; tiered pricing applies at quantity. We accept purchase orders from qualified businesses, government and defence agencies, and educational institutions, with net terms and consolidated invoicing available. Email the quantity you need and we will come back within 48 business hours.
Other capacities in the Dell Technologies PowerEdge Rail Kit Legacy range
| Model | Part number | Availability | From |
|---|---|---|---|
| Dell PowerEdge ReadyRails B5 Static 1U (R620, R630) | — | In Stock | $115 |
| Dell PowerEdge ReadyRails B6 Sliding 1U (R630, R640) | — | In Stock | $190 |
| Dell PowerEdge ReadyRails A7 Static 2U (R720, R730) | — | In Stock | $125 |
| Dell PowerEdge ReadyRails B12 Sliding 2U (R730, R740) | — | In Stock | $205 |
| Dell PowerEdge Cable Management Arm 1U (R630, R640) | — | In Stock | $105 |
| Dell PowerEdge Cable Management Arm 2U (R730, R740) | — | In Stock | $115 |
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