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5U rails made ML350 servicing much easier.
790357-B21
HP ML350 Gen9 5U Rail FIO Kit
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790357-B21
HP ML350 Gen9 5U Rail FIO Kit
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790357-B21 is an enclosed cabinet rack designed for floor standing applications in data centers, network closets, telecom racks, and AV equipment. It offers a 42U height, features a standard 19-inch mounting with a rack depth in the 600–800mm range, and provides secure cable management along with a vented door and passive cooling support to ensure optimal airflow.
The cabinet is constructed from cold-rolled steel and is equipped with included casters and leveling feet for enhanced mobility and stability. Additionally, it incorporates a front door locking mechanism, tool-less side panels, and expansion-ready rails, all while supporting a weight capacity of 501–1000 lbs for demanding IT and telecommunications applications.
790357-B21 price is is available on request. Get immediate quote.
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In a Fortune 500 data center migration to VMware vSphere, IT operations teams deploy 20 HP ML350 Gen9 servers across five 42U racks using the 790357-B21-HP ML350 Gen9 5U Rail FIO Kit. The front I/O rail design enables tool-less mounting, consistent alignment, and clear cable routing for network and storage connections. Outcome: 40% faster rack integration, optimized airflow for peak virtualization performance, and simplified server maintenance cycles.
A university research lab builds a 50-node High-Performance Computing cluster to run complex simulations. By leveraging the 790357-B21-HP ML350 Gen9 5U Rail FIO Kit, engineers densely pack ML350 Gen9 servers in 42U racks with front-mounted I/O for InfiniBand and Ethernet interconnects. Outcome: 25% increase in compute density per rack, rapid slide-in access for node replacement, and improved thermal consistency under full load.
A nationwide retail chain deploys mini edge-data centers in 200 stores to support real-time inventory analytics and POS systems. Field technicians use the 790357-B21-HP ML350 Gen9 5U Rail FIO Kit to mount servers in compact network cabinets, ensuring secure front-I/O connections and tool-free servicing. Outcome: 60% reduction in on-site installation time, standardized hardware rollouts across locations, and enhanced system availability for critical retail operations.
To get the detailed certification, please go to the Compliance Center.
 790357-B21 |  BW913A |  872225-B21 |  Q7G16A |  734807-B21 | |
|---|---|---|---|---|---|
| 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 / AV Rack | Data Center / Networking Closet / AV Rack / Telecom | Data Center | Data Center | Data Center / Networking Closet / Telecom / AV Rack |
| Rack Width | 19-inch | 19-inch | 23-inch | 19-inch | 19-inch |
| Rack Depth | 600–800mm | 800–1000mm | 800–1000mm | 600–800mm | 600–800mm |
| Weight Capacity | 501–1000 lbs | 1001–2000 lbs | 2000+ 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 | Vented Door |
| Side Panels | Tool-less | Fixed | Removable | Removable | Removable |
| Cable Management | Included | Included | Included | Tool-less | 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 | Included | Optional | Optional | No | Optional |
| 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 | UL Listed / CE | RoHS / UL Listed / CE | EIA-310-D / RoHS / UL Listed | UL Listed | UL Listed |
| Product Name | 790357-B21 Enclosed Server Cabinet | BW913A Enclosed Server Rack | 872225-B21 Enclosed Network Rack | Q7G16A Enclosed Network Rack | 734807-B21 Enclosed Server Rack Cabinet |
| Height | 78 inches | 78 inches | 78 inches | 76 inches | 84 inches |
| Width | 24 inches | 24 inches | 23 inches | 24 inches | 24 inches |
| Depth | 36 inches | 39 inches | 38 inches | 30 inches | 30 inches |
| Weight | 450 lbs | 800 lbs | 300 lbs | 400 lbs | 350 lbs |
5U rails made ML350 servicing much easier.
OEM rails fit perfectly.
Smooth sliding action.
Sturdy and reliable.
Good quality rail kit.
The HP ML350 Gen9 5U Rail FIO Kit (790357-B21) is a factory-integrated, toolless rack-mount rail assembly designed to mount an HP ProLiant ML350 Gen9 server into a standard 5U four-post rack.
The 790357-B21 rail kit is compatible exclusively with HP ProLiant ML350 Gen9 series servers and is not supported on previous or newer ProLiant generations.
It supports EIA-310-E compliant four-post racks with square, round or threaded hole mounting-profiles and accommodates rack depths from 600 mm to 1,000 mm.
Yes, the HP ML350 Gen9 5U Rail FIO Kit features a toolless, quick-release design for fast front-to-rear rail installation without additional tools.