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417705-B21
HP TOWER TO RACK CONVERSION TRAY UNIVERSAL
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417705-B21 is an enclosed cabinet rack designed for data centers, network closets, and telecom installations. It features a 42U height with a mounting standard of 19-inch, a standard rack depth option of 600–800mm, and a robust weight capacity of 2000+ lbs. The unit includes a vented door design optimized for airflow and passive cooling support, integrated cable management for neat installations, and incorporates both leveling feet and optional casters to ensure a stable yet transportable solution.
This innovative rack also provides practical features such as removable side panels and a secure front door locking mechanism, enhancing both accessibility and safety. Ideal for hosting AV equipment and critical network hardware, the 417705-B21 is engineered for versatility and durability to meet the rigorous demands of modern data centers and telecom environments.
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Request bulk order quote for 417705-B21 for additional pricing. Browse the full Hpe Racks series or explore all Hpe products.
In a global enterprise migrating mixed HP ProLiant tower servers into standardized 19
A colocation provider leverages the 417705-B21-HP tray to install customer-owned HP tower servers into rack cabinets without custom engineering, accelerating on-boarding across multi-tenant data halls. Benefit: Slash rack-space provisioning time by 50%, boost client SLA adherence, and unlock immediate revenue from newly commissioned installations.
A retail chain standardizes edge-site IT by using the 417705-B21-HP universal tray to mount HP tower servers in compact wall-mount and 2-post racks at hundreds of outlets. Benefit: Simplify hardware staging, ensure uniform deployment, and reduce branch-site build-out time by 40%, enhancing remote management and uptime.
To get the detailed certification, please go to the Compliance Center.
 417705-B21 |  H6J84A |  BW917A |  BW911A |  P9K48A | |
|---|---|---|---|---|---|
| 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 | 48U |
| Use Case | Data Center / Networking Closet / Telecom | Data Center | Data Center / Networking Closet / Telecom / AV Rack | Data Center / Networking Closet / AV Rack / Small Office / Server Hosting / Telecom | 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 | 600–800mm | 800–1000mm | 1000mm+ |
| Weight Capacity | 2000+ lbs | 501–1000 lbs | 501–1000 lbs | 2000+ lbs | 2000+ lbs |
| Material | Cold-Rolled Steel | Cold-Rolled Steel | Steel | Steel | Cold-Rolled Steel |
| Door Type | Vented Door | Vented Door | Vented Door | Solid Door | Vented Door |
| Side Panels | Removable | Tool-less | Removable | Removable | Removable |
| Cable Management | Included | Included | Included | Included | Included |
| 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 | Included | 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 | N/A | Yes | Yes |
| Color | Black | Black | Black | Black | Black |
| Compliance | RoHS / UL Listed / CE | EIA-310-D | RoHS / UL Listed | UL Listed | UL Listed |
| Product Name | 417705-B21 Enclosed Data Center Cabinet | H6J84A Enclosed Server Rack | BW917A Enclosed Cabinet Rack | BW911A Enclosed Server Rack | P9K48A Enclosed Server Cabinet |
| Height | 84 inches | 78 inches | 78 inches | 73.5 inches | 84 inches |
| Width | 27 inches | 24 inches | 27 inches | 23 inches | 27 inches |
| Depth | 32 inches | 36 inches | 32 inches | 36 inches | 47 inches |
| Weight | 300 lbs | 500 lbs | 850 lbs | 300 lbs | 600 lbs |
The tower to rack conversion tray fit perfectly and made redeploying our tower server into the rack straightforward.
Solid build quality and easy installation. Saved us from replacing existing tower hardware.
Universal design worked as advertised. Server feels secure once mounted.
Well engineered tray that aligns cleanly in standard racks.
Reliable solution for converting legacy tower systems into rack environments.
The HP 417705-B21 is a universal conversion tray that enables compatible HP tower servers to be mounted in standard 19-inch server racks, optimizing data center space and airflow.
The 417705-B21 tray supports HP ProLiant ML series tower servers, including ML10, ML30, ML110, ML150, and ML350 models, ensuring secure rack mounting without mechanical modifications.
The conversion tray measures 17.5 inches (445 mm) in depth, 19 inches (482 mm) in width, and occupies 2U (3.5 inches / 89 mm) of rack space.
The tray is engineered to support up to 50 lbs (22.7 kg) of server weight, providing stable and secure rack mounting for compatible tower servers.