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Microsoft 131072 GB300 CX-8 Hyperscaler Spectrum X Cluster Configuration

MSFT-GB300-CX8-SX5-NV-8P-2L

Microsoft · GB300 · CX-8

Rack type

NVL72

Cluster / location

All Other Clusters

Buyer profile

Hyperscaler

Networking type

Spectrum X

Number of XPUs

131,072

NIC used

CX-8

NICs / XPU

Scale-out BW / XPU

800G

XPU / server

Scale-up network

8 rows

Assigned blockDefault

GB300 - NVL72

Scale-UpXPU: GB300 NVL728 linesshared by 22 SKUs

Drill down in SKU Topology

Scale-Up Parts Summary

Item	Qty/Cluster	Qty/Server	Attach/XPU
Nvidia NVSwitch 5.0 (NVLink 5)	32,768	18.00	0.25
NV 2 UltraPass OverPass 144 DP 224Gb/s	65,536	36.00	0.50
NV Paladin HD2 224Gb/s 144 DP (Male)	65,536	36.00	0.50
NV Paladin HD2 224Gb/s 144 DP (Female)	65,536	36.00	0.50
NV Paladin HD2 224Gb/s 72 DP (Male)	131,072	72.00	1.00
NV Paladin HD2 224Gb/s 72 DP (Female)	131,072	72.00	1.00
NV 224Gb/s SkewClear EXD Gen 2 Cable	9,437,184	5,184.00	72.00
NVL Spine Chassis (NvLink 5)	3,641	2.00	0.03

Backend network

4 rows

Assigned blockDefault

GB300 - NVL72 - CX8 - 2L - ETH - Spectrum-5 - MSFT

BackendXPU: GB300 NVL724 linesshared by 1 SKU

Drill down in SKU Topology

Backend Parts Summary

Item	Qty/Cluster	Qty/Server	Attach/XPU
Generic 800G DR8	524,288	288.00	4.00
Generic 400G Single Mode	524,288	288.00	4.00
ConnectX-8 NIC - 800G	131,072	72.00	1.00
Spectrum-5 51.2T (SN56XX) 512 Radix	6,144	3.38	0.05

Frontend network

11 rows

Assigned blockDefault

GB300 - NVL72 - SN5600 - Generic

FrontendXPU: GB300 NVL7211 linesshared by 10 SKUs

Drill down in SKU Topology

Frontend Parts Summary

Item	Qty/Cluster	Qty/Server	Attach/XPU
Spectrum-4 51.2T (SN5600)	1,573	1	0.0120
Spectrum-3 12.8T (SN4700)	7	0	0.0001
Spectrum-2 6.4T (SN3700)	234	0	0.0018
Spectrum-2 1GbE (SN2201)	1,924	1	0.0147
Nvidia LinkX 800G SR8	76,114	42	0.5807
Nvidia LinkX 400G SR4	75,717	42	0.5777
Nvidia LinkX 100G SR4 QSFP28	33,600	18	0.2563
Nvidia LinkX 800G Multimode	104,168	57	0.7947
Nvidia LinkX 400G Multimode	533	0	0.0041
Nvidia LinkX 100G Multimode	14,967	8	0.1142
RJ45 Cables	92,375	51	0.7048

Compute Tray Networking Content

3 rows

Assigned blockDefault

GB300 - NVL72 - Generic

Compute TrayXPU: GB300 NVL723 linesshared by 20 SKUs

Compute Tray Parts Summary

Item	Qty/Cluster	Qty/Server	Attach/XPU
NV MCIO PCIe x16 Connector	65,536	36.00	0.50
NV MCIO PCIe x16 Cable	65,536	36.00	0.50
NV DensiLink OverPass to OSFP Cage	131,072	72.00	1.00

2026 share

Nvidia NVSwitch 5.0 (NVLink 5)Σ 100%

NV 2 UltraPass OverPass 144 DP 224Gb/sΣ 100%

NV Paladin HD2 224Gb/s 144 DP (Male)Σ 100%

NV Paladin HD2 224Gb/s 144 DP (Female)Σ 100%

NV Paladin HD2 224Gb/s 72 DP (Male)Σ 100%

NV Paladin HD2 224Gb/s 72 DP (Female)Σ 100%

NV 224Gb/s SkewClear EXD Gen 2 CableΣ 100%

NVL Spine Chassis (NvLink 5)Σ 100%

Item	Unit Cost	Quantity	Quantity (per Server)	Quantity (per XPU)	Extended Price for Cluster	Extended Price per Server	Power (W) per Unit	Extended Power (W) per Cluster	Extended Power (W) per Server	Device Type	Hyperscaler	Vendor	Manufacturer	Component	Speed	SerDes Speed	Protocol	Technology	XPU	Network	Tab Name
Per-server cost: $166,764.00
	$3,200.00	32,768	18.00	0.25	$104,857,600.00	$57,600.00	407 W	13,349,683 W	7,333 W	Scale-Up Switch	Microsoft	Nvidia	—	Device Level	—	—	NVLink	—	GB300	Scale-Up	MSFT-GB300-CX8-SX5-NV-8P-2L
	$720.00	65,536	36.00	0.50	$47,185,920.00	$25,920.00	0 W	0 W	0 W	Backplane	Microsoft	Nvidia	Amphenol	White Label	—	—	—	—	GB300	Scale-Up	MSFT-GB300-CX8-SX5-NV-8P-2L
	$576.00	65,536	36.00	0.50	$37,748,736.00	$20,736.00	0 W	0 W	0 W	Backplane	Microsoft	Nvidia	Amphenol	White Label	—	224G	NVLink	—	GB300	Scale-Up	MSFT-GB300-CX8-SX5-NV-8P-2L
	$288.00	65,536	36.00	0.50	$18,874,368.00	$10,368.00	0 W	0 W	0 W	Backplane	Microsoft	Nvidia	Amphenol	White Label	—	224G	NVLink	—	GB300	Scale-Up	MSFT-GB300-CX8-SX5-NV-8P-2L
	$288.00	131,072	72.00	1.00	$37,748,736.00	$20,736.00	0 W	0 W	0 W	Backplane	Microsoft	Nvidia	Amphenol	White Label	—	224G	NVLink	—	GB300	Scale-Up	MSFT-GB300-CX8-SX5-NV-8P-2L
	$144.00	131,072	72.00	1.00	$18,874,368.00	$10,368.00	0 W	0 W	0 W	Backplane	Microsoft	Nvidia	Amphenol	White Label	—	224G	NVLink	—	GB300	Scale-Up	MSFT-GB300-CX8-SX5-NV-8P-2L
	$4.00	9,437,184	5,184.00	72.00	$37,748,736.00	$20,736.00	0 W	0 W	0 W	Backplane	Microsoft	Nvidia	Amphenol	White Label	—	224G	NVLink	—	GB300	Scale-Up	MSFT-GB300-CX8-SX5-NV-8P-2L
	$150.00	3,641	2.00	0.03	$546,133.33	$300.00	0 W	0 W	0 W	Backplane	Microsoft	Others	Others	Device Level	—	—	NVLink	—	GB300	Scale-Up	MSFT-GB300-CX8-SX5-NV-8P-2L
Per-server cost: $271,815.00
	$500.00	524,288	288.00	4.00	$262,144,000.00	$144,000.00	16 W	8,388,608 W	4,608 W	Transceiver	Microsoft	AAOI	—	Device Level	—	112G	Ethernet	Fully Retimed	GB300	Backend	MSFT-GB300-CX8-SX5-NV-8P-2L
	$130.00	524,288	288.00	4.00	$68,157,440.00	$37,440.00	0 W	0 W	0 W	Fiber	Microsoft	Amphenol	—	Device Level	—	—	—	—	GB300	Backend	MSFT-GB300-CX8-SX5-NV-8P-2L
	$1,500.00	131,072	4.00	1.00	$196,608,000.00	$6,000.00	75 W	9,830,400 W	300 W	NIC	Microsoft	Nvidia	—	Device Level	—	—	—	—	GB300	Backend	MSFT-GB300-CX8-SX5-NV-8P-2L
	$25,000.00	6,144	3.38	0.05	$153,600,000.00	$84,375.00	950 W	5,836,800 W	3,206 W	Switch	Microsoft	Nvidia	—	Device Level	—	—	Ethernet	—	GB300	Backend	MSFT-GB300-CX8-SX5-NV-8P-2L
Per-server cost: $122,577.84
	$23,000.00	1,573	0.86	0.01	$36,187,834.92	$19,878.57	950 W	1,494,715 W	821 W	Switch	Microsoft	Nvidia	—	Device Level	—	—	Ethernet	—	GB300	Frontend	MSFT-GB300-CX8-SX5-NV-8P-2L
	$21,600.00	7	0.00	0.00	$140,434.28	$77.14	630 W	4,096 W	2 W	Switch	Microsoft	Nvidia	—	Device Level	—	—	Ethernet	—	GB300	Frontend	MSFT-GB300-CX8-SX5-NV-8P-2L
	$13,273.51	234	0.13	0.00	$3,106,759.00	$1,706.59	250 W	58,514 W	32 W	Switch	Microsoft	Nvidia	—	Device Level	—	—	Ethernet	—	GB300	Frontend	MSFT-GB300-CX8-SX5-NV-8P-2L
	$2,400.00	1,924	1.06	0.01	$4,618,727.62	$2,537.14	150 W	288,670 W	159 W	Switch	Microsoft	Nvidia	—	Device Level	—	—	Ethernet	—	GB300	Frontend	MSFT-GB300-CX8-SX5-NV-8P-2L
	$930.23	76,114	41.81	0.58	$70,803,797.70	$38,893.69	14 W	1,065,597 W	585 W	Transceiver	Microsoft	Nvidia	Coherent, Eoptolink, Innolight, Mellanox	White Label	—	112G	InfiniBand	Fully Retimed	GB300	Frontend	MSFT-GB300-CX8-SX5-NV-8P-2L
	$575.00	75,717	41.59	0.58	$43,537,554.29	$23,915.89	9 W	681,457 W	374 W	Transceiver	Microsoft	Nvidia	Coherent, Innolight, Mellanox	White Label	—	112G	InfiniBand	Fully Retimed	GB300	Frontend	MSFT-GB300-CX8-SX5-NV-8P-2L
	$123.74	33,600	18.46	0.26	$4,157,813.02	$2,283.95	3 W	100,801 W	55 W	Transceiver	Microsoft	Nvidia	Mellanox, Others	White Label	—	28G	InfiniBand	Fully Retimed	GB300	Frontend	MSFT-GB300-CX8-SX5-NV-8P-2L
	$525.00	104,168	57.22	0.79	$54,688,426.67	$30,041.25	0 W	0 W	0 W	Fiber	Microsoft	Others	—	White Label	—	—	—	—	GB300	Frontend	MSFT-GB300-CX8-SX5-NV-8P-2L
	$375.00	533	0.29	0.00	$199,923.81	$109.82	0 W	0 W	0 W	Fiber	Microsoft	Others	—	White Label	—	—	—	—	GB300	Frontend	MSFT-GB300-CX8-SX5-NV-8P-2L
	$375.00	14,967	8.22	0.11	$5,612,495.24	$3,083.04	0 W	0 W	0 W	Fiber	Microsoft	Others	—	White Label	—	—	—	—	GB300	Frontend	MSFT-GB300-CX8-SX5-NV-8P-2L
	$1.00	92,375	50.74	0.70	$92,374.55	$50.74	0 W	0 W	0 W	Cable	Microsoft	Amphenol	—	Device Level	—	—	—	—	GB300	Frontend	MSFT-GB300-CX8-SX5-NV-8P-2L
Per-server cost: $4,005.00
	$1.25	65,536	36.00	0.50	$81,920.00	$45.00	0 W	0 W	0 W	Connector	Microsoft	Amphenol	Amphenol	White Label	—	—	—	—	GB300	Compute Tray	MSFT-GB300-CX8-SX5-NV-8P-2L
	$35.00	65,536	36.00	0.50	$2,293,760.00	$1,260.00	0 W	0 W	0 W	Cable	Microsoft	Amphenol	Amphenol	White Label	—	—	—	—	GB300	Compute Tray	MSFT-GB300-CX8-SX5-NV-8P-2L
	$37.50	131,072	72.00	1.00	$4,915,200.00	$2,700.00	0 W	0 W	0 W	Cable	Microsoft	Amphenol	Amphenol	White Label	—	—	—	—	GB300	Compute Tray	MSFT-GB300-CX8-SX5-NV-8P-2L

By fabric

Total Scale-Up

$303,584,597.33

$166,764.00

13,349,683 W

7,333 W

Total Backend

$680,509,440.00

$271,815.00

24,055,808 W

8,114 W

Total Frontend

$223,146,141.10

$122,577.84

3,693,851 W

2,029 W

Total Compute Tray

$7,290,880.00

$4,005.00

0 W

Grand Total Cluster Networking

$1,214,531,058.43

$565,161.84

41,099,342 W

17,477 W

By component

Total Transceivers

$380,643,165.01

$209,093.54

10,236,463 W

5,623 W

Total Switches

$197,653,755.82

$108,574.45

7,682,796 W

4,220 W

Total Fiber

$128,658,285.71

$70,674.11

0 W

Total Cables

$7,301,334.55

$4,010.74

0 W

Total Connectors

$81,920.00

$45.00

0 W

Total NICs

$196,608,000.00

$6,000.00

9,830,400 W

300 W