Board to Board & Mezzanine Connectors

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SpeedStack Mezzanine Connector System

Molex SpeedStack Mezzanine Connector System offers a high-density, low-profile solution that delivers data rates up to 40Gbps per differential pair. With mated stack heights of 4mm to 10mm with a 0.80mm pitch, these connectors provide design flexibility for PCB space-constrained applications. The narrow housing design minimizes airflow obstructions and promotes system cooling. Molex SpeedStack Mezzanine Connector System utilizes a split-pad PCB design that allows for electrical tuning performance and provides edge card compatibility. The robust insert-molded wafer design with protected shrouded housing supports the terminal location to improve electrical balance within the signals for low-profile, high-density systems. In addition, a common grounding pin improves electrical performance and minimizes crosstalk.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CHF) Filter the results in the table by unit price based on your quantity.	Qty.	Product	Number of Positions	Pitch	Number of Rows	Termination Style	Mounting Angle	Stack Height	Current Rating	Voltage Rating	Minimum Operating Temperature	Maximum Operating Temperature	Contact Plating	Contact Material	Housing Material	Series	Packaging
Board to Board & Mezzanine Connectors SPEEDSTACK RECEPT 60 CKT, 4mm 171450-5106 Molex 1: CHF 12.80 2’863In Stock	Mfr. Part No. 171450-5106 Mouser Part No 538-171450-5106	Molex	Board to Board & Mezzanine Connectors SPEEDSTACK RECEPT 60 CKT, 4mm Learn More about Molex _speedstack_mezzanine	Datasheet	2’863In Stock	Cut Tape CHF 12.80 CHF 11.35 CHF 10.92 CHF 10.48 View Reel CHF 6.68 CHF 9.90 CHF 9.03 CHF 7.97 CHF 7.75 CHF 6.68 MouseReel Available	Min.: 1 Mult.: 1 : 2’800	Receptacles	60 Position	0.8 mm (0.031 in)	2 Row	Solder	Vertical	5 mm, 6 mm, 7 mm, 8mm	800 mA	29.9 VAC	- 40 C	+ 105 C	Gold	Copper	Liquid Crystal Polymer (LCP)	171450	Reel, Cut Tape, MouseReel
Board to Board & Mezzanine Connectors SpeedStack SE Vert Plug 2.9mm Ht 22Ckt 171810-1107 Molex 1: CHF 3.29 1’079In Stock	Mfr. Part No. 171810-1107 Mouser Part No 538-171810-1107	Molex	Board to Board & Mezzanine Connectors SpeedStack SE Vert Plug 2.9mm Ht 22Ckt Learn More about Molex _speedstack_mezzanine	Datasheet	1’079In Stock	Cut Tape CHF 3.29 CHF 3.00 CHF 2.84 CHF 2.64 Reel CHF 2.24 View CHF 2.31 CHF 1.92 CHF 1.80 CHF 1.70	Min.: 1 Mult.: 1 : 500	Headers	22 Position	0.8 mm (0.031 in)	2 Row	Solder	Vertical	2.9 mm	800 mA	5 VAC	- 40 C	+ 105 C	Gold	Copper	Liquid Crystal Polymer (LCP)	171810	Reel, Cut Tape
Board to Board & Mezzanine Connectors SpeedStack 22ckt Rcpt 171450-5102 Molex 1: CHF 6.79 33In Stock 4’300Expected 11/2/2026	Mfr. Part No. 171450-5102 Mouser Part No 538-171450-5102	Molex	Board to Board & Mezzanine Connectors SpeedStack 22ckt Rcpt Learn More about Molex _speedstack_mezzanine	Datasheet	33In Stock 4’300Expected 11/2/2026	Cut Tape CHF 6.79 CHF 6.14 CHF 5.80 CHF 5.66 View Reel CHF 5.24 CHF 5.37 CHF 5.24 CHF 5.24	Min.: 1 Mult.: 1 : 4’800	Receptacles	22 Position	0.8 mm (0.031 in)	2 Row	Solder	Vertical	5 mm, 6 mm, 7 mm, 8mm	800 mA	29.9 VAC	- 40 C	+ 105 C	Gold	Copper	Liquid Crystal Polymer (LCP)	171450	Reel, Cut Tape
Board to Board & Mezzanine Connectors SpeedStack Vrt Plg 0.9mm Ht 60Ckt 171446-1109 Molex 1: CHF 7.65 570In Stock	Mfr. Part No. 171446-1109 Mouser Part No 538-171446-1109	Molex	Board to Board & Mezzanine Connectors SpeedStack Vrt Plg 0.9mm Ht 60Ckt Learn More about Molex _speedstack_mezzanine	Datasheet	570In Stock	Cut Tape CHF 7.65 CHF 6.94 CHF 6.57 CHF 6.41 View Reel CHF 5.31 CHF 6.24 CHF 5.63 CHF 5.32 CHF 5.31 CHF 5.31	Min.: 1 Mult.: 1 : 3’600	Headers	60 Position	0.8 mm (0.031 in)	2 Row	Solder	Vertical	0.9 mm	800 mA	5 V	- 40 C	+ 105 C	Gold	Copper	Liquid Crystal Polymer (LCP)	171446	Reel, Cut Tape
Board to Board & Mezzanine Connectors SpeedStack Vrt Plg 2.9mm Ht 60Ckt 171446-1115 Molex 1: CHF 10.52 643In Stock	Mfr. Part No. 171446-1115 Mouser Part No 538-171446-1115	Molex	Board to Board & Mezzanine Connectors SpeedStack Vrt Plg 2.9mm Ht 60Ckt Learn More about Molex _speedstack_mezzanine	Datasheet	643In Stock	Cut Tape CHF 10.52 CHF 8.94 CHF 8.39 CHF 7.98 Reel CHF 6.79 View CHF 7.61 CHF 7.58 CHF 6.46 Quote	Min.: 1 Mult.: 1 : 500	Plugs	60 Position	0.8 mm (0.031 in)	2 Row	Solder	Vertical	2.9 mm	800 mA	5 V	- 40 C	+ 105 C	Gold	Copper	Liquid Crystal Polymer (LCP)	171446	Reel, Cut Tape
Board to Board & Mezzanine Connectors SpeedStack Vert Plug 1.9mm Ht 60Ckt 171446-1114 Molex 1: CHF 10.49 39In Stock	Mfr. Part No. 171446-1114 Mouser Part No 538-171446-1114	Molex	Board to Board & Mezzanine Connectors SpeedStack Vert Plug 1.9mm Ht 60Ckt Learn More about Molex _speedstack_mezzanine	Datasheet	39In Stock	Cut Tape CHF 10.49 CHF 9.29 CHF 8.94 CHF 8.59 Reel CHF 6.91 View CHF 8.11 CHF 7.39 CHF 6.73	Min.: 1 Mult.: 1 : 400	Headers	60 Position	0.8 mm (0.031 in)	2 Row	Solder	Vertical	1.9 mm	800 mA	5 V	- 40 C	+ 105 C	Gold	Copper	Liquid Crystal Polymer (LCP)	171446	Reel, Cut Tape
Board to Board & Mezzanine Connectors SpeedStack Vert Plug 1.9mm Ht 22Ckt 171446-1102 Molex 4’000: CHF 6.82 Non-Stocked	Mfr. Part No. 171446-1102 Mouser Part No 538-171446-1102	Molex	Board to Board & Mezzanine Connectors SpeedStack Vert Plug 1.9mm Ht 22Ckt Learn More about Molex _speedstack_mezzanine	Datasheet	Non-Stocked	Cut Tape CHF 6.82	Min.: 4’000 Mult.: 4’000 : 800	Headers	22 Position	0.8 mm (0.031 in)	2 Row	Solder	Vertical	1.9 mm	800 mA	5 V	- 40 C	+ 105 C	Gold	Copper	Liquid Crystal Polymer (LCP)	171446	Reel
Board to Board & Mezzanine Connectors SpeedStack Vrt Plg 3.9mm Ht 60Ckt 171446-1112 Molex 2’000: CHF 10.64 Non-Stocked	Mfr. Part No. 171446-1112 Mouser Part No 538-171446-1112	Molex	Board to Board & Mezzanine Connectors SpeedStack Vrt Plg 3.9mm Ht 60Ckt Learn More about Molex _speedstack_mezzanine	Datasheet	Non-Stocked	CHF 10.64	Min.: 2’000 Mult.: 2’000		60 Position	0.8 mm (0.031 in)	2 Row		Vertical		800 mA	5 V	- 40 C	+ 105 C	Gold			171446
Board to Board & Mezzanine Connectors SpeedStack Vertical Receptacle, 0.80mm Pitch, 4.10mm Height, 82 Circuits, UL94V-0, Black 1714505114 Molex 1’800: CHF 10.23 Non-Stocked	Mfr. Part No. 1714505114 Mouser Part No 538-1714505114	Molex	Board to Board & Mezzanine Connectors SpeedStack Vertical Receptacle, 0.80mm Pitch, 4.10mm Height, 82 Circuits, UL94V-0, Black	Datasheet	Non-Stocked	CHF 10.23	Min.: 1’800 Mult.: 1’800															171450
Board to Board & Mezzanine Connectors SPEEDSTACK RECEPT 60 CKT 3mm Molex 171450-5105 171450-5105 Molex 2’800: CHF 8.06 Non-Stocked	Mfr. Part No. 171450-5105 Mouser Part No 538-171450-5105	Molex	Board to Board & Mezzanine Connectors SPEEDSTACK RECEPT 60 CKT 3mm Learn More about Molex _speedstack_mezzanine		Non-Stocked	CHF 8.06	Min.: 2’800 Mult.: 2’800															171450

SpeedStack Mezzanine Connector System

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