StarTech.com CMLB104 — 10 Horizontal Lacing Bars That Keep 19-inch Rack Cabling Tied Down
10-pack19-inch rack102 mm offset at 75°Steel, black
The StarTech.com CMLB104 is a pack of ten horizontal cable lacing bars for standard 19-inch server and network racks, each with a 102 mm (4 in) offset angled at 75 degrees, made for anyone who needs to anchor patch and power cables neatly behind switches, patch panels or servers.
A lacing bar is the simplest cable management part in a rack: it bolts across the rack rails and gives you a rigid rail to tie cables to with cable ties or hook-and-loop straps. The 75-degree offset holds the bundle away from the equipment ports, so connectors are not strained and airflow around the device stays clear. With ten bars in the box you can fit one behind every switch or patch panel in a small or medium rack.
Before you order: These are 19-inch rack parts that fix with M5 cage nuts, so your rack needs square-hole rails that accept cage nuts. They are not for 10-inch mini racks or 23-inch telecom frames.
What's in the Box
- 10 × horizontal cable lacing bars
- 20 × M5 screws
- 20 × M5 cage nuts
What It Means in Practice
- One bar per device: fit a bar directly behind or in front of each switch or patch panel and tie that device's cables to it.
- The offset keeps the cable bundle 102 mm away from the rack plane, which gives room for RJ45 boots and fibre connectors without sharp bends.
- Cable ties or hook-and-loop straps are not included — hook-and-loop straps are the better choice if you re-patch often.
- Each bar uses two cage-nut positions, so plan the bars before the rack is fully populated.
What Will Not Work
- Round-hole or threaded-hole racks that do not take M5 cage nuts — you would need matching screws instead.
- 10-inch racks and 23-inch telecom racks — the bars are 19-inch width only.
- Vertical cable management along the rack sides — these are horizontal bars; for vertical runs look at a D-ring vertical manager.
- They do not carry equipment weight; they are for cable restraint only.
Key Features
Angled 75° offset
Holds cables forward of the rack plane so connectors are not pulled downward.
Pack of ten
Enough bars to fit one per device across a typical 12U–24U network rack.
Standard 19-inch fit
EIA/ECA-310-E compliant spacing for standard server and network racks.
Technical Specifications
| Identification |
| Brand |
StarTech.com |
| Part Number |
CMLB104 |
| EAN / GTIN |
0065030869003 |
| Type |
Horizontal cable lacing bar, 10-pack |
| Physical |
| Rack width |
19-inch |
| Standard |
EIA/ECA-310-E |
| Offset |
102 mm (4 in) at 75 degrees |
| Dimensions (per bar) |
483 × 102 × 11 mm |
| Material |
Steel |
| Colour |
Black |
| Shipping weight |
1.9 kg (pack) |
| Mounting |
| Fixing |
M5 screws and M5 cage nuts (included) |
| Orientation |
Horizontal, front or rear of rack |
| Warranty |
| Warranty |
1-Year Warranty (Singular) |
| Manufacturer Term |
2-year warranty per StarTech.com — claims handled through Singular |
Frequently Asked Questions
Are cable ties included?
No. The pack contains the bars, screws and cage nuts only. Use cable ties or reusable hook-and-loop straps to fix cables to the bars.
Can I mount them at the rear of the rack?
Yes. The bars fix to any pair of 19-inch rails, front or rear, so you can use them behind switches for patch cables or at the back of servers for power leads.
Do they take up rack space?
They occupy mounting holes on the rails, so leave space for them when you plan the rack layout, ideally directly next to the device they serve.
Singular Expert Insight · Buyer's Guide
Lacing bars are the cheapest way to stop a rack turning into a cable knot, and ten in one box covers a whole small rack. Pair them with short
network patch cables so each run sits tight against its bar instead of looping.
✓ Buy it if you want to fix patch or power cables behind or in front of each device in a 19-inch square-hole rack.
✕ Skip it if your rack has round or threaded holes, or you need vertical side cable management.
→ Also consider a vertical D-ring cable manager for the rack sides, or a 1U horizontal cable management panel with brush or rings.
Not sure it fits your setup? Send us the model of your rack, switch or device and we will check compatibility before you order.