United States$5,000,000+
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Liam O'Connell
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Cable management arm reduced rack clutter and made maintenance far easier.
720865-B21
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2U CABLE MANAGEMENT ARM GEN8 KIT PL=SI
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Name:
720865-B21
- Description:
- 2U CABLE MANAGEMENT ARM GEN8 KIT PL=SI
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- Brand:
- Hpe
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720865-B21 Overview
720865-B21 is an enclosed cabinet rack designed for robust use in environments such as data centers, network closets, and telecom installations. This rack features a 42U height configuration, a standard 19-inch mounting width with a depth rated between 600–800mm, and a weight capacity of 501–1000 lbs. It includes a vented door for optimal airflow, horizontal cable management to keep wiring organized, and passive ventilation to support effective cooling.
720865-B21 is engineered with practicality in mind, offering optional casters and included leveling feet to facilitate safe mobility and stability. The unit is further secured by a front door lock and removable side panels, making it perfect for sensitive AV equipment and server hosting while meeting standard mounting requirements in professional settings.
720865-B21 price is is available on request. Get immediate quote.
Request bulk order quote for 720865-B21 for additional pricing. Browse the full Hpe Racks series or explore all Hpe products.
720865-B21 Specifications
- Product Type
- Rack
- Rack Type
- Enclosed Cabinet
- Mounting Type
- Floor Standing
- Rack Height (U)
- 42U
- Use Case
- Data Center / Networking Closet / Telecom
- Rack Width
- 19-inch
- Rack Depth
- 600–800mm
- Weight Capacity
- 501–1000 lbs
- Material
- Cold-Rolled Steel
- Door Type
- Vented Door
- Side Panels
- Removable
- Cable Management
- Horizontal
- Cooling Support
- Passive Ventilation
- Locking Mechanism
- Front Door Lock
- Casters
- Optional
- Leveling Feet
- Included
- Rails Included
- Yes
- Expansion Ready
- Yes
- Grounding Kit Included
- Yes
- Color
- Black
- Compliance
- RoHS
- Product Name
- 720865-B21 Enclosed Data Rack Cabinet
- Height
- 73.5 inches
- Width
- 24 inches
- Depth
- 30 inches
- Weight
- 750 lbs
720865-B21 Use Case
Rapid Hot-Swap Server Replacement in Enterprise Data Centers
When IT administrators perform hot-swap maintenance on HP ProLiant Gen8 2U servers, the 720865-B21-2U Cable Management Arm PL=SI keeps network and power cables organized and secured outside the rack. This reduces mean time to repair (MTTR) by up to 30%, prevents accidental cable disconnections, and ensures continuous application uptime.
Optimized Airflow and Cooling in High-Density Racks
In high-density virtualization environments, uncontrolled cable bundles can block airflow and drive up cooling costs. Installing the 720865-B21-2U Cable Management Arm on each 2U Gen8 chassis maintains neat cable paths, improves rack airflow by 25%, and helps data centers meet ASHRAE thermal guidelines for energy efficiency.
Standardized Cable Management for Multi-Site IT Deployments
Global enterprises deploying HP Gen8 servers across multiple sites need consistent rack standards to simplify audits and compliance. The 720865-B21-2U Cable Management Arm PL=SI delivers a uniform cable routing solution that accelerates rack build-outs by 40%, enforces best-practice documentation, and reduces on-site installation errors.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| 720865-B21 |  BW907A |  BW903A |  Q7G16A |  P9K50A | |
|---|---|---|---|---|---|
| Product Type | Rack | Rack | Rack | Rack | Rack |
| Rack Type | Enclosed Cabinet | Enclosed Cabinet | Enclosed Cabinet | Enclosed Cabinet | Enclosed Cabinet |
| Mounting Type | Floor Standing | Floor Standing | Floor Standing | Floor Standing | Floor Standing |
| Rack Height (U) | 42U | 42U | 42U | 42U | 42U |
| Use Case | Data Center / Networking Closet / Telecom | Data Center / Networking Closet / AV Rack / Telecom | Data Center / Networking Closet / Telecom / AV Rack | Data Center | Data Center / Networking Closet / AV Rack / Telecom |
| Rack Width | 19-inch | 19-inch | 19-inch | 19-inch | 19-inch |
| Rack Depth | 600–800mm | 800–1000mm | 800–1000mm | 600–800mm | 600–800mm |
| Weight Capacity | 501–1000 lbs | 501–1000 lbs | 501–1000 lbs | 1001–2000 lbs | 501–1000 lbs |
| Material | Cold-Rolled Steel | Cold-Rolled Steel | Cold-Rolled Steel | Cold-Rolled Steel | Cold-Rolled Steel |
| Door Type | Vented Door | Vented Door | Vented Door | Vented Door | Solid Door |
| Side Panels | Removable | Removable | Removable | Removable | Removable |
| Cable Management | Horizontal | Tool-less | Included | Tool-less | Horizontal |
| Cooling Support | Passive Ventilation | Passive Ventilation | Passive Ventilation | Passive Ventilation | Passive Ventilation |
| Locking Mechanism | Front Door Lock | Front Door Lock | Front Door Lock | Front Door Lock | Front Door Lock |
| Casters | Optional | No | No | No | No |
| Leveling Feet | Included | Included | Included | Included | Included |
| Rails Included | Yes | Yes | Yes | Yes | Yes |
| Expansion Ready | Yes | Yes | Yes | Yes | Yes |
| Grounding Kit Included | Yes | Yes | Yes | Yes | Yes |
| Color | Black | Black | Black | Black | Black |
| Compliance | RoHS | EIA-310-D / RoHS / UL Listed / CE | EIA-310-D / RoHS / UL Listed / CE | UL Listed | EIA-310-D / RoHS / UL Listed / CE |
| Product Name | 720865-B21 Enclosed Data Rack Cabinet | BW907A Enclosed Data Rack | BW903A Enclosed Server Rack | Q7G16A Enclosed Network Rack | P9K50A Enclosed Server Rack |
| Height | 73.5 inches | 73.5 inches | 75 inches | 76 inches | 78 inches |
| Width | 24 inches | 19 inches | 24 inches | 24 inches | 24 inches |
| Depth | 30 inches | 39 inches | 36 inches | 30 inches | 28 inches |
| Weight | 750 lbs | 250 lbs | 250 lbs | 400 lbs | 120 lbs |
Reviews & Ratings
S
Stefan M'ller
5
Smooth movement and solid build quality.
M
Marco Bianchi
4
Fit perfectly on Gen8 servers.
J
Jonas Eriksen
4
Improved airflow and cable organization.
P
Paul Whitaker
5
Reliable accessory for busy racks.
Questions & Answers
What is the HP 720865-B21 2U Cable Management Arm Gen8 Kit?
The HP 720865-B21 2U Cable Management Arm Gen8 Kit is an accessory designed to organize and secure cables on HP ProLiant Gen8 2U rack servers, ensuring streamlined maintenance and improved airflow.
Which HP server models are compatible with the 720865-B21 Gen8 Cable Management Arm?
The 720865-B21 is fully compatible with HP ProLiant Gen8 2U rack servers, including DL380, DL360, and related G8 series models.
What are the key features of the 2U Cable Management Arm Gen8 Kit?
Key features include a robust steel construction, tool-less installation, integrated cable-routing channels, pivoting arm design, and compatibility with standard 2U rack rails.
How does the Gen8 Cable Management Arm improve server maintenance?
By securing and routing cables away from hot swap drive bays, the arm enables quick server slide-out without disconnecting cables, reducing downtime and maintenance effort.
What are the physical dimensions of the 720865-B21 cable management arm?
The cable management arm measures 19.0 inches in length, 3.5 inches in height, and 1.2 inches in width, fitting standard 2U rack mounting spaces.
How much does the HP Gen8 Cable Management Arm weigh?
The complete kit weighs approximately 1.2 pounds (0.54 kg), making it lightweight yet durable for repeated rack slide operations.
What items are included in the 720865-B21 Gen8 kit?
The kit contains one cable management arm assembly, mounting brackets, thumbscrews, and detailed installation instructions.
What tools are required to install the 2U Cable Management Arm Gen8 Kit?
No special tools are required; all necessary thumbscrews and brackets are included for a tool-less installation process.
Can the HP Gen8 Cable Management Arm be used in non-HP racks?
Yes, it is compatible with any standard EIA-310-compliant 2U rack rail system from major manufacturers.
How does the cable arm affect airflow in the rack?
By neatly securing cables along the side, the arm maintains unobstructed airflow across server intake and exhaust vents, optimizing cooling performance.
Is there a warranty on the 720865-B21 Gen8 Cable Management Arm?
HP provides a one-year limited warranty covering defects in materials and workmanship for the cable management arm kit.
How do I order the HP 720865-B21 Cable Management Arm?
You can order through HP authorized resellers or the official HP Parts Store by searching SKU 720865-B21.
How do I maintain the Gen8 Cable Management Arm?
Regularly inspect for loose screws, clean dust from cable channels, and ensure smooth pivot movement to maintain peak performance.
Can I route power and data cables together in this arm?
Yes, the arm’s design supports simultaneous routing of power, Ethernet, and fiber cables while maintaining separation to prevent interference.
Does the 720865-B21 kit include cable ties or clips?
The kit includes integrated cable-routing clips; additional Velcro ties can be added for customized cable bundling.
Why should I use the HP 2U Cable Management Arm Gen8 Kit?
Using this kit prevents cable strain, reduces service time, enhances rack airflow, and ensures a professional, reliable server installation.