P26485-B21 is the HPE option part number for ProLiant DL300 Gen10 Plus 1U SFF Easy Install Rail Kit. It is the rack rail kit specified for the 1U small form factor DL360 Gen10 Plus server chassis, ordered as a standalone option rather than as part of a factory-integrated configuration. If you are racking a DL360 Gen10 Plus that shipped without rails, or moving one into a new cabinet, this is the kit that matches the chassis mounting points and the 1U height. Order it by option part number when you are building to a configuration sheet or expanding an existing rack deployment.
HPE Option Part #: P26485-B21
PRODUCT SPECIFICATIONS FOR P26485-B21:
- Product Type: Rack rail kit
- Height (Rack Units): 1U
COMPATIBLE WITH:
PROLIANT DL SERIES
** This list may not be complete. Contact us via Live Chat if you have any questions about compatibility.
FREQUENTLY ASKED QUESTIONS ABOUT P26485-B21
Which servers does P26485-B21 support?
This rail kit is specified for the HPE ProLiant DL360 Gen10 Plus server. It is a 1U kit, matching the 1U small form factor chassis of that model. It is not listed for other ProLiant generations or for 2U chassis, so if you are racking a different model you should confirm the rail kit called out for that specific server rather than substituting this one.
How much rack space does this kit occupy?
The kit is rated at 1U, corresponding to the 1U height of the DL360 Gen10 Plus chassis it supports. When planning cabinet layout, allocate a single rack unit per server plus rails. The rails themselves do not add height beyond the 1U envelope, but you should still account for cable management and airflow clearance behind the chassis in your overall rack elevation.
What is the difference between an option part number and a spare part number?
An option part number such as P26485-B21 is the number HPE assigns to the item as an orderable option, typically used when configuring or expanding a server. A spare part number identifies the same physical hardware as a service replacement part. Both refer to the same rail kit, but purchasing documentation, quotes and configuration sheets normally reference the option number.
Do I need this kit if my DL360 Gen10 Plus was ordered with rails?
No. If rails were included in the original server configuration, you already have the mounting hardware. This option part number is for cases where the server was ordered without rails, where rails were lost or damaged, or where you are relocating a chassis into a cabinet and need a second set of mounting hardware for the new position.
Is this the correct kit for a 2U DL300 series server?
No. This kit is a 1U rack rail kit and is specified for the DL360 Gen10 Plus. A 2U chassis requires rails designed for that chassis depth and mounting pattern. Check the rail kit part number listed for your exact server model before ordering, since rails are matched to the specific chassis rather than shared across the whole DL300 range.
Last Updated: 2026-08-17
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This product is warrantied against hardware failure for a period of 1 Year from the date of purchase. Before making a purchase, please take a moment to review our return policy below.
Returns
It is the customer's responsibility to verify compatibility with their machine(s) before placing an order. If an item is ordered by mistake, it can be returned for refund, minus a 25% restocking fee, within 5 business days of receipt. The cost of freight is not refundable.
Please be aware that factory-sealed equipment can only be returned if it remains unopened.
Defective Products
If you have received a defective part and your machine is still within the HPE warranty period, please initiate a warranty exchange by visiting the HPE Enterprise Support Center. Be sure to have the serial numbers of the defective drive and your server/storage array handy.
In case your hardware becomes defective during the Global One warranty period, but the HPE warranty has expired, you can return the product to us for a working replacement. You are responsible for the shipment of returned merchandise. However, we will cover the expense of Ground /Economy shipment for the replacement item(s).
Requesting an RMA
To initiate a return or warranty claim, please complete and submit the RMA Request Form.
