Rack Server (2U) Product
Overview
A rack server is a computer built to live in a data-center rack rather than on a desk. The 2U format means it is two rack units tall, so dozens fit in a single cabinet. Density drives every design choice: components pack tightly front to back, airflow runs in one straight path, and almost every serviceable part slides out without tools so a technician can swap it while neighboring servers keep running.
The machine starts with the Chassis & Rails, a folded sheet-metal box on Slide Rail rails. Inside, the Server Motherboard carries two CPUs, registered memory, and a BMC (Baseboard Mgmt Controller) for lights-out management. Storage rides in the Drive Backplane & Bays, populated with Solid-State Drive and Hard Disk Drive units and driven by a RAID / HBA Card. Air is moved by the Cooling Fan Wall, expansion cards mount on PCIe Riser cages, and two hot-swap Power Supply modules keep the server alive if one fails.
How it works
Cold air enters the front, crosses the drives, passes the fan wall, and exhausts hot at the rear. The dual-socket motherboard runs the workload; its baseboard management controller is a second tiny computer that watches temperatures, controls fan speed, and lets an administrator power-cycle or reinstall the server remotely even when the main system is off.
Data lands on the backplane, which fans a few controller links out to every bay through a SAS expander, so any drive is reachable from the RAID / HBA Card. That card stripes data across drives for speed and parity for safety, holding recent writes in cache that a supercapacitor flushes to flash on power loss. The PCIe Riser turns the board's vertical slots sideways to fit under the 2U lid, where Network Interface Card cards connect the server to the network. Redundancy is the theme throughout: two power supplies, paired fans, and tool-less carriers mean a single failure is a hot-swap, not an outage.
Build & assembly graph
expand / collapse · shared sub-assemblies converge · links to related products · est. labourTap an assembly to expand/collapse · tap a part to open it · use “Open page” for any node · drag to pan, scroll to zoom.
Bill of materials
12 top-level lines · 86 rows shown · 2,032 parts total · indented to 3 levels| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Chassis & Rails 6 parts | rack-server-chassis | 1× | 1 | 8 | assembly |
| 1.1 | Sheet Metal Panel | sheet-panel | 1× | 1 | — | part |
| 1.2 | Top Cover | rack-server-top-cover | 1× | 1 | — | part |
| 1.3 | Air Shroud | rack-server-air-shroud | 1× | 1 | — | part |
| 1.4 | Slide Rail | rack-server-slide-rail | 2× | 2 | — | part |
| 1.5 | Rack Ear Bracket | rack-server-ear-bracket | 2× | 2 | — | part |
| 1.6 | Fastener Set | fastener-set | 1× | 1 | — | part |
| 2 | Server Motherboard 9 parts | rack-server-motherboard | 1× | 1 | 748 | assembly |
| 2.1 | Bare PCB | pcb-bare | 1× | 1 | — | part |
| 2.2 | CPU Socket (LGA) | rack-server-cpu-socket | 2× | 2 | — | part |
| 2.3 | Compute SoC Module | soc-module | 1× | 1 | — | part |
| 2.4 | RDIMM Slot | rack-server-dimm-slot | 16× | 16 | — | part |
| 2.5 | VRM Phase 3 parts | rack-server-vrm | 4× | 4 | 15 | assembly |
| 2.5.1 | VRM Power Stage | rack-server-vrm-mosfet | 2× | 8 | — | part |
| 2.5.2 | VRM Inductor | rack-server-vrm-inductor | 1× | 4 | — | part |
| 2.5.3 | SMD Passive (R/C/L) | smd-passives | 12× | 48 | — | part |
| 2.6 | BMC (Baseboard Mgmt Controller) 3 parts | rack-server-bmc | 1× | 1 | 42 | assembly |
| 2.6.1 | BMC ASIC | rack-server-bmc-soc | 1× | 1 | — | part |
| 2.6.2 | BMC/BIOS Flash | rack-server-bmc-flash | 1× | 1 | — | part |
| 2.6.3 | SMD Passive (R/C/L) | smd-passives | 40× | 40 | — | part |
| 2.7 | CPU Heatsink | rack-server-cpu-heatsink | 2× | 2 | — | part |
| 2.8 | Connector | connector | 24× | 24 | — | part |
| 2.9 | SMD Passive (R/C/L) | smd-passives | 600× | 600 | — | part |
| 3 | Drive Backplane & Bays 6 parts | rack-server-drive-backplane | 1× | 1 | 116 | assembly |
| 3.1 | Bare PCB | pcb-bare | 1× | 1 | — | part |
| 3.2 | SAS Expander IC | rack-server-sas-expander | 1× | 1 | — | part |
| 3.3 | Hot-Swap Bay | rack-server-drive-bay | 12× | 12 | — | part |
| 3.4 | Drive Carrier 3 parts | rack-server-drive-carrier | 12× | 12 | 3 | assembly |
| 3.4.1 | Sheet Metal Panel | sheet-panel | 1× | 12 | — | part |
| 3.4.2 | Carrier Latch | rack-server-carrier-latch | 1× | 12 | — | part |
| 3.4.3 | Fastener Set | fastener-set | 1× | 12 | — | part |
| 3.5 | Connector | connector | 6× | 6 | — | part |
| 3.6 | SMD Passive (R/C/L) | smd-passives | 60× | 60 | — | part |
| 4 | Solid-State Drive 5 parts | rack-server-ssd | 4× | 4 | 41 | assembly |
| 4.1 | Bare PCB | pcb-bare | 1× | 4 | — | part |
| 4.2 | NAND Flash Package | rack-server-nand | 8× | 32 | — | part |
| 4.3 | SSD Controller IC | rack-server-ssd-controller | 1× | 4 | — | part |
| 4.4 | DRAM Cache | rack-server-dram-cache | 1× | 4 | — | part |
| 4.5 | SMD Passive (R/C/L) | smd-passives | 30× | 120 | — | part |
| 5 | Hard Disk Drive 6 parts | rack-server-hdd | 8× | 8 | 70 | assembly |
| 5.1 | Disk Platter | rack-server-hdd-platter | 5× | 40 | — | part |
| 5.2 | Spindle Motor | rack-server-hdd-spindle | 1× | 8 | — | part |
| 5.3 | Voice-Coil Actuator | rack-server-hdd-actuator | 1× | 8 | — | part |
| 5.4 | Read/Write Head | rack-server-hdd-head | 10× | 80 | — | part |
| 5.5 | HDD Controller PCB 3 parts | rack-server-hdd-pcb | 1× | 8 | 52 | assembly |
| 5.5.1 | Bare PCB | pcb-bare | 1× | 8 | — | part |
| 5.5.2 | Microcontroller | mcu | 1× | 8 | — | part |
| 5.5.3 | SMD Passive (R/C/L) | smd-passives | 50× | 400 | — | part |
| 5.6 | HDA Casting & Cover | rack-server-hdd-casting | 1× | 8 | — | part |
| 6 | RAID / HBA Card 6 parts | rack-server-raid-card | 1× | 1 | 128 | assembly |
| 6.1 | Bare PCB | pcb-bare | 1× | 1 | — | part |
| 6.2 | RAID-on-Chip | rack-server-roc | 1× | 1 | — | part |
| 6.3 | Cache DRAM | rack-server-cache-dram | 1× | 1 | — | part |
| 6.4 | Cache Backup Unit | rack-server-cache-backup | 1× | 1 | — | part |
| 6.5 | Connector | connector | 4× | 4 | — | part |
| 6.6 | SMD Passive (R/C/L) | smd-passives | 120× | 120 | — | part |
| 7 | Power Supply | power-supply | 2× | 2 | — | part |
| 8 | Cooling Fan Wall 4 parts | rack-server-fan-wall | 1× | 1 | 18 | assembly |
| 8.1 | Blower Motor | blower-motor | 6× | 6 | — | part |
| 8.2 | Fan Controller 3 parts | rack-server-fan-controller | 1× | 1 | 10 | assembly |
| 8.2.1 | Bare PCB | pcb-bare | 1× | 1 | — | part |
| 8.2.2 | Microcontroller | mcu | 1× | 1 | — | part |
| 8.2.3 | Connector | connector | 8× | 8 | — | part |
| 8.3 | Fan Cage | rack-server-fan-bracket | 1× | 1 | — | part |
| 8.4 | Wire Bundle | wire-bundle | 1× | 1 | — | part |
| 9 | PCIe Riser 4 parts | rack-server-pcie-riser | 2× | 2 | 24 | assembly |
| 9.1 | Bare PCB | pcb-bare | 1× | 2 | — | part |
| 9.2 | PCIe Slot | rack-server-pcie-slot | 2× | 4 | — | part |
| 9.3 | Connector | connector | 1× | 2 | — | part |
| 9.4 | SMD Passive (R/C/L) | smd-passives | 20× | 40 | — | part |
| 10 | Network Interface Card 5 parts | rack-server-nic | 2× | 2 | 95 | assembly |
| 10.1 | Bare PCB | pcb-bare | 1× | 2 | — | part |
| 10.2 | Ethernet Controller | rack-server-nic-controller | 1× | 2 | — | part |
| 10.3 | SFP+ Cage | rack-server-sfp-cage | 2× | 4 | — | part |
| 10.4 | Connector | connector | 1× | 2 | — | part |
| 10.5 | SMD Passive (R/C/L) | smd-passives | 90× | 180 | — | part |
| 11 | Front Control Panel 6 parts | rack-server-front-panel | 1× | 1 | 37 | assembly |
| 11.1 | Bare PCB | pcb-bare | 1× | 1 | — | part |
| 11.2 | Power Button | rack-server-power-button | 1× | 1 | — | part |
| 11.3 | Status LED | rack-server-status-led | 6× | 6 | — | part |
| 11.4 | Connector | connector | 4× | 4 | — | part |
| 11.5 | Wire Bundle | wire-bundle | 1× | 1 | — | part |
| 11.6 | SMD Passive (R/C/L) | smd-passives | 24× | 24 | — | part |
| 12 | Internal Cable Kit 2 parts | rack-server-cable-kit | 1× | 1 | 13 | assembly |
| 12.1 | Wire Bundle | wire-bundle | 1× | 1 | — | part |
| 12.2 | Connector | connector | 12× | 12 | — | part |
Sourcing — likely vendors
Companies that make this · indicative price $20–$3k · MOQ & lead are typical| Vendor | HQ | Specialty | MOQ | Lead time |
|---|---|---|---|---|
| dell.com ↗ | Round Rock, US | Computers & infrastructure | 1,000 units | 8–14 wks |
| 🇺🇸HP hp.com ↗ | Palo Alto, US | Computers & printers | 1,000 units | 8–14 wks |
| 🇨🇳Lenovo lenovo.com ↗ | Beijing, CN | Computers | 1,000 units | 8–14 wks |
| 🇹🇼ASUS asus.com ↗ | Taipei, TW | Computers & components | 1,000 units | 8–14 wks |
| 🇨🇳Foxconn foxconn.com ↗ | Shenzhen, CN | Electronics contract mfg | 1,000 units | 8–14 wks |
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