Rackmount.IT RM-CI-T21: 19-inch rack kit for Cisco ISR 1101-4P
1U · 19-inchCisco Metallic BlueFront-facing portsPower supply fixed in rack
The Rackmount.IT RM-CI-T21 is a custom 19-inch rack mount kit for Cisco ISR 1101-4P that places the router in 1U of rack space with its connections brought to the front, for IT teams and installers who want a desktop router to sit properly in a network cabinet.
Desktop routers are built to stand on a shelf, with ports at the back and a loose external power adapter. In a cabinet that usually means a device lying on a shelf and cables you cannot reach. This kit replaces that: the router slides into a tray made for its exact shape, retainers hold it in place, the included cables link its ports to keystones on the front plate, and the power supply is fixed to the rack. Rackmount.IT quotes an assembly time of under three minutes.
Before you order: This kit fits only the models Rackmount.IT lists: Cisco ISR 1101-4P. It is not a universal shelf, so check the exact model name on the label of your device. Other ISR 1100 models and the ISR 926/927 use RM-CI-T11.
What's in the Box
- 1 x Rackmount.IT RM-CI-T21 rack kit, 1U, Cisco Metallic Blue
- Retainers that hold the router in the tray
- Keystones on the front plate plus the cables that connect them to the device ports
- Fixing for the external power supply inside the rack
- Not included: the router itself, its power adapter and rack screws or cage nuts (use the set that came with your cabinet)
What It Means in Practice
- Patch cables plug into the front keystones, so you never reach behind the router to add or move a connection.
- The power adapter is fixed in the rack, so a pulled cable or a cleaning session cannot switch the router off by accident.
- It uses 1U (43.5 mm high) at standard 19-inch width and is only 216 mm deep, so it suits shallow wall cabinets as well as full-depth racks.
- Replacing the router later is quick: release the retainers, unplug the short cables and slide it out.
What Will Not Work
- Models that are not on the list, even from the same product family: the tray is shaped for specific housings. Other ISR 1100 series routers and the ISR 926/927 use RM-CI-T11.
- Mixed or unlisted desktop equipment: for that use a standard fixed or cantilever 19-inch shelf.
- It adds no ports, PoE, cooling or power; the router's own connections are only extended to the front.
Key Features
Custom-fit tray
Shaped for the listed router housings, so the device sits firmly without shelves, straps or cable ties.
Front-facing connections
The included cables run from the device ports to keystones on the front plate, so all patching is done from the front of the rack.
Power supply fixed in the rack
The external adapter is secured inside the kit, which prevents accidental power loss when cables are moved.
Technical Specifications
| Identification |
| Part Number |
RM-CI-T21 |
| EAN / GTIN |
8720297441455 |
| Brand |
Rackmount.IT |
| Product type |
19-inch rack mount kit |
| Physical |
| Rack height |
1U |
| Dimensions (H x W x D) |
43.5 x 483 x 216 mm |
| Width |
19-inch (483 mm) |
| Colour |
Cisco Metallic Blue |
| Weight |
1.2 kg |
| Compatibility |
| Compatible models |
Cisco ISR 1101-4P |
| Wireless / antennas |
Fits the Wi-Fi, 3G, 4G or 5G version of the ISR 1101-4P |
| Installation |
| Mounting |
Standard 19-inch rack or cabinet |
| Assembly time |
Under 3 minutes (manufacturer figure) |
| Connections |
Front keystones with included cables |
| Warranty |
| Warranty |
1-Year Warranty (Singular) |
| Manufacturer Term |
Rackmount.IT does not publish a warranty term on its product page — claims handled through Singular |
Frequently Asked Questions
Does the kit include the router?
No. The kit is only the rack mount; the router and its power adapter are ordered separately and fitted into the tray.
Do I need a deep rack?
No. The kit is 216 mm deep, so it fits most wall-mount cabinets as well as standard server racks. You only need 1U of free space at the front rails.
Singular Expert Insight · Buyer's Guide
The ISR 1101-4P is small enough to get lost on a shelf, and Cisco's own mounting options for it are limited. The RM-CI-T21 gives it a dedicated 1U tray in Cisco blue with front patching, so it looks and services like any other rack device. Browse more mounting parts in our
rack accessories range.
✓ Buy it if you have a Cisco ISR 1101-4P and want it rack-mounted with its ports at the front.
✕ Skip it if your router is another ISR 1100 model or an ISR 926/927 — use RM-CI-T11.
→ Also consider RM-CI-T11 for the wider ISR 1100 series and ISR 926/927.
Not sure which kit matches your device? Send us the exact model from its label and we will confirm the right Rackmount.IT kit before you order.