# Rack rail cable management arm

**URL:** <https://forum.45homelab.com/t/rack-rail-cable-management-arm/671>\
**Category:** Hardware\
**Created:** [November 17, 2023, 12:00pm UTC](https://forum.45homelab.com/t/rack-rail-cable-management-arm/671 "2023-11-17T12:00:10Z")\
**Posts on this page:** 9\
**Page:** 1

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**Author:** ![eric.stammen](https://forum.45homelab.com/letter_avatar_proxy/v4/letter/e/b5e925/32.png) [@eric.stammen](https://forum.45homelab.com/u/eric.stammen)\
**Post date:** [November 17, 2023, 12:00pm UTC](https://forum.45homelab.com/t/rack-rail-cable-management-arm/671/1 "2023-11-17T12:00:10Z")

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Do we have the model for the cable management arm that goes into the optional rack rails?

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**Author:** ![SpringerSpaniel](https://forum.45homelab.com/letter_avatar_proxy/v4/letter/s/db5fbb/32.png) [@SpringerSpaniel](https://forum.45homelab.com/u/SpringerSpaniel)\
**Post date:** [November 17, 2023, 4:44pm UTC](https://forum.45homelab.com/t/rack-rail-cable-management-arm/671/2 "2023-11-17T16:44:24Z")

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MCP-290-00073-0N. It’s made by Supermicro, and I bought all of mine on ShopBLT for $76 each.

> **[Supermicro MCP-290-00073-0N Cable Management Arm 2u 3u 4u Chassis.](http://www.shopblt.com/item/supermicro-mcp-290-00073-0n-cable-management-arm-2u/supmic_mcp290000730n.html)**
>
> Supermicro MCP-290-00073-0N mcp290000730n Cable Management Arm 2u 3u 4u Chassis shipped for $75.52. Free shipping! Secure purchasing, 30 day return policy.

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**Author:** ![Ashley-45Drives](https://forum.45homelab.com/user_avatar/forum.45homelab.com/ashley-45drives/32/24_2.png) [@Ashley-45Drives](https://forum.45homelab.com/u/Ashley-45Drives)\
**Post date:** [November 17, 2023, 8:03pm UTC](https://forum.45homelab.com/t/rack-rail-cable-management-arm/671/3 "2023-11-17T20:03:37Z")

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Hey @eric.stammen — We have cable management arms available for our Enterprise servers. These will also fit the HL15, as the holes are already there for mounting purposes.

We will make sure to add these to our e-store when it’s live, but in the meantime, if you want them sooner and want to purchase them from us please send an email to @Vikram-45HomeLab - [info@45homelab.com](mailto:info@45homelab.com). He can order them for you in the interim.

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**Author:** ![Glitch3dPenguin](https://forum.45homelab.com/user_avatar/forum.45homelab.com/glitch3dpenguin/32/2393_2.png) [@Glitch3dPenguin](https://forum.45homelab.com/u/Glitch3dPenguin)\
**Post date:** [November 17, 2023, 10:14pm UTC](https://forum.45homelab.com/t/rack-rail-cable-management-arm/671/4 "2023-11-17T22:14:56Z")

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Has anyone used these with fiber networking hardware? I wonder if they will damage fiber wires or if you need to put them in a tube or something to protect them. It would really suck to have one get pinched.

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**Author:** ![SpringerSpaniel](https://forum.45homelab.com/letter_avatar_proxy/v4/letter/s/db5fbb/32.png) [@SpringerSpaniel](https://forum.45homelab.com/u/SpringerSpaniel)\
**Post date:** [November 17, 2023, 11:09pm UTC](https://forum.45homelab.com/t/rack-rail-cable-management-arm/671/5 "2023-11-17T23:09:58Z")

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Most deployments will probably be using DAC which aren’t as fragile. I’ve definitely run OM3, OM4, OS1 and OS2 through cable managers before into the back of servers, I think entirely without incident. Probably worth observing that most patch cords are going to be _bend insensitive_ fiber.

Should you want a little extra certainty you can inexpensively go to armored patch cable -

> **[3m (10ft) LC UPC to LC UPC OM4 Armored Patch Cable - FS.com](https://www.fs.com/products/41028.html)**
>
> Shop 3m (10ft) LC UPC to LC UPC Duplex OM4 Armored PVC (OFNR) Patch Cable at reliable Fiber Patch Cord Supplier-FS.COM, In stock. Ship Same Day.

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**Author:** ![acp](https://forum.45homelab.com/letter_avatar_proxy/v4/letter/a/b5a626/32.png) [@acp](https://forum.45homelab.com/u/acp)\
**Post date:** [November 28, 2023, 9:50pm UTC](https://forum.45homelab.com/t/rack-rail-cable-management-arm/671/6 "2023-11-28T21:50:44Z")

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Don’t forget to add to the store.

Thanks

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**Author:** ![Ashley-45Drives](https://forum.45homelab.com/user_avatar/forum.45homelab.com/ashley-45drives/32/24_2.png) [@Ashley-45Drives](https://forum.45homelab.com/u/Ashley-45Drives)\
**Post date:** [November 29, 2023, 5:57pm UTC](https://forum.45homelab.com/t/rack-rail-cable-management-arm/671/7 "2023-11-29T17:57:10Z")

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Thanks @acp — We’ll make sure we get this added as soon as we can.

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**Author:** ![marcuschiu](https://forum.45homelab.com/letter_avatar_proxy/v4/letter/m/41988e/32.png) [@marcuschiu](https://forum.45homelab.com/u/marcuschiu)\
**Post date:** [November 11, 2026, 1:25am UTC](https://forum.45homelab.com/t/rack-rail-cable-management-arm/671/8 "2026-11-11T01:25:52Z")

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does this work with the new HL15 Beast?

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**Author:** ![Hutch-45Drives](https://forum.45homelab.com/user_avatar/forum.45homelab.com/hutch-45drives/32/64_2.png) [@Hutch-45Drives](https://forum.45homelab.com/u/Hutch-45Drives)\
**Post date:** [November 11, 2026, 12:43pm UTC](https://forum.45homelab.com/t/rack-rail-cable-management-arm/671/9 "2026-11-11T12:43:49Z")

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Hey @marcuschiu, Yes this will work with the beast as the Rail mounting and sliding rails are standard across our rackmounted Homelab servers.
