Packet Input Stage

Assembly

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High-speed deserializers converting 100 Gbps QSFP28 streams to internal packet format, with buffer management.

Direct parts	5
Total parts	17
Used in	1 assembly
Class	Assembly

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High-speed deserializers converting 100 Gbps QSFP28 streams to internal packet format, with buffer management. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

Packet Input Stage parts and their functions

5 top-level parts · 17 parts in total · full bill of materials below

Packet Input Stage parts diagram: 1 QSFP28 100 gbps port, 2 multi-lane SerDes ASIC, 3 64 GB input buffer DRAM, 4 256 MB descriptor cache SRAM, 5 SMD passive (R/C/L). 17 parts in 5 top-level items. — Packet Input Stage parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.

#	Part	Qty	What it does
1	QSFP28 100 Gbps Port	12×	QSFP28 transceiver slots, 100 Gbps each
2	Multi-Lane SerDes ASIC	1×	High-speed SerDes ASIC, 12 lanes @ 25.78 Gbps per lane
3	64 GB Input Buffer DRAM	1×	DRAM buffer 64 GB for packet storage and rate smoothing
4	256 MB Descriptor Cache SRAM	1×	SRAM cache for packet descriptors, 256 MB
5	SMD Passive (R/C/L)	2×	Termination resistors, DC coupling capacitors

3D model

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Build & assembly graph

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Bill of materials for Packet Input Stage

5 top-level lines · 5 rows shown · 17 parts total · indented to 3 levels

#	Item / sub-assembly	Part no.	Qty/assy	Ext. qty	Parts	Type
1	QSFP28 100 Gbps Port	network-packet-broker-qsfp28-port-x12	12×	12	·	part
2	Multi-Lane SerDes ASIC	network-packet-broker-serdes-asic	1×	1	·	part
3	64 GB Input Buffer DRAM	network-packet-broker-input-buffer	1×	1	·	part
4	256 MB Descriptor Cache SRAM	network-packet-broker-descriptor-cache	1×	1	·	part
5	SMD Passive (R/C/L)	smd-passives	2×	2	·	part

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Where the packet input stage is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Networking & Telecom 1 Network Packet Broker

Used in 1 assembly

Network Packet Broker

Sourcing: possible vendors

Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $0.50–$100. How estimates work

Vendor	HQ	Specialty	MOQ	Lead time
🇨🇳Foxconn foxconn.com ↗	Shenzhen, CN	Electronics contract mfg	1,000 pcs	6–10 wks
🇸🇬Flex (Singapore) flex.com ↗	Singapore	Electronics contract mfg	1,000 pcs	6–10 wks
🇮🇳Dixon Technologies dixoninfo.com ↗	Noida, IN	Electronics contract mfg	1,000 pcs	6–10 wks
🇨🇳BYD Electronics bydelectronic.com ↗	Shenzhen, CN	Electronics contract mfg	1,000 pcs	6–10 wks
🇸🇬Venture Corp venture.com.sg ↗	Singapore	Electronics contract mfg	1,000 pcs	6–10 wks