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Q2™ Shielded Ground Plane Connectors

Samtec Q2™ Shielded Ground Plane Connectors are rugged, high-speed, 0.635mm pitch, ground plane sockets and headers with a 19Gbps to 35Gbps performance range. The board-to-board Q2™ Shielded Connectors include the QFSS and QMSS series components that are available in multiple orientations, stack heights, positions, and with power/RF end options. These connectors are also available as a differential pair and/or power combo and meet the PCI/104-Express™ standard specifications.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CLP) Filter the results in the table by unit price based on your quantity.	Qty.
Headers & Wire Housings 0.635 mm Q2 High-Speed Rugged Ground Plane Terminal Strip QMS-026-09.75-S-D-A Samtec 1: $23.549 60In Stock	Mfr. Part # QMS-026-09.75-S-D-A Mouser Part # 200-QMS0260975SDA	Samtec	Headers & Wire Housings 0.635 mm Q2 High-Speed Rugged Ground Plane Terminal Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	60In Stock	$23.549 $22.979 $22.683 $21.054 View $18.707 $16.987 $16.588 Quote	Min.: 1 Mult.: 1
Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Terminal Strip QMSS-016-06.75-L-D-DP-PC4 Samtec 1: $18.855 5In Stock	Mfr. Part # QMSS-016-06.75-L-D-DP-PC4 Mouser Part # 200-QMSS01606.75LDDP	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Terminal Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	5In Stock	$18.855 $17.989 $17.021 $15.118 View $13.147 $11.188 $10.618 Quote	Min.: 1 Mult.: 1
Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Terminal Strip QMSS-016-06.75-L-D-DP-A Samtec 1: $17.682 84In Stock	Mfr. Part # QMSS-016-06.75-L-D-DP-A Mouser Part # 200-QMSS0160675LDDPA	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Terminal Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	84In Stock	$17.682 $16.075 $13.500 $12.099 View $12.088 $11.302 Quote	Min.: 1 Mult.: 1
Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Terminal Strip QMSS-026-06.75-L-D-A-K Samtec 1: $18.365 1In Stock	Mfr. Part # QMSS-026-06.75-L-D-A-K Mouser Part # 200-QMSS0260675LDAK	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Terminal Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	1In Stock	$18.365 $16.212 $14.173 $13.911 View $13.899 $13.535	Min.: 1 Mult.: 1
Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Terminal Strip QMSS-032-06.75-L-D-DP-A Samtec 1: $23.105 63In Stock	Mfr. Part # QMSS-032-06.75-L-D-DP-A Mouser Part # 200-QMSS0320675LDDPA	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Terminal Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	63In Stock	$23.105 $22.956	Min.: 1 Mult.: 1
Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Terminal Strip QMSS-052-06.75-L-D-PC4 Samtec 1: $32.219 2In Stock	Mfr. Part # QMSS-052-06.75-L-D-PC4 Mouser Part # 200-QMSS0520675LDPC4	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Terminal Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	2In Stock	$32.219 $27.468 $21.908 $20.564 View $18.593 Quote	Min.: 1 Mult.: 1
Headers & Wire Housings 0.635 mm Q2 High-Speed Rugged Ground Plane Socket Strip QFS-052-04.25-H-D-A Samtec 1: $29.257 52In Stock	Mfr. Part # QFS-052-04.25-H-D-A Mouser Part # 200-QFS0520425HDA	Samtec	Headers & Wire Housings 0.635 mm Q2 High-Speed Rugged Ground Plane Socket Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	52In Stock	$29.257 $28.858 $25.235 $23.435 View $23.424 Quote	Min.: 1 Mult.: 1
Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Terminal Strip QMSS-026-06.75-L-D-A Samtec 1: $18.194 4In Stock	Mfr. Part # QMSS-026-06.75-L-D-A Mouser Part # 200-QMSS02606.75LDA	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Terminal Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	4In Stock	$18.194 $16.030 $13.261 $12.054 View $12.042 $11.233 Quote	Min.: 1 Mult.: 1
Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Terminal Strip QMSS-026-06.75-L-D-PC4 Samtec 1: $22.512 15In Stock	Mfr. Part # QMSS-026-06.75-L-D-PC4 Mouser Part # 200-QMSS0260675LDPC4	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Terminal Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	15In Stock	$22.512 $19.231	Min.: 1 Mult.: 1
Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip QFSS-026-04.25-L-D-PT4 Samtec 1: $18.137 41In Stock	Mfr. Part # QFSS-026-04.25-L-D-PT4 Mouser Part # 200-QFSS0260425LDPT4	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	41In Stock	$18.137 $17.169 $16.121 $14.321 View $12.441 $10.584 $10.208	Min.: 1 Mult.: 1
Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip QFSS-026-04.25-L-D-A Samtec 1: $17.476 Lead-Time 2 Weeks	Mfr. Part # QFSS-026-04.25-L-D-A Mouser Part # 200-QFSS02604.25LDA	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	Lead-Time 2 Weeks	$17.476 $15.221 $12.145 $11.404 View $10.310 $9.764 Quote	Min.: 1 Mult.: 1
Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip QFSS-048-04.25-L-D-DP-A Samtec 1: $30.236 6Expected 11/30/2026	Mfr. Part # QFSS-048-04.25-L-D-DP-A Mouser Part # 200-QFSS0480425LDDPA	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	6Expected 11/30/2026	$30.236 $28.049 $26.955 $23.948 View $20.815 $19.584 Quote	Min.: 1 Mult.: 1
Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip QFSS-026-04.25-L-D-A-GP-P-TR Samtec 150: $20.758 Non-Stocked Lead-Time 9 Weeks	Mfr. Part # QFSS-026-04.25-L-D-A-GP-P-TR Mouser Part # 200-FSS0260425LDAGP	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip	Datasheet	Non-Stocked Lead-Time 9 Weeks	Reel $20.758 Quote Quote	Min.: 150 Mult.: 150 : 150
Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip QFSS-026-04.25-L-D-BM-GP Samtec 52: $15.916 Non-Stocked Lead-Time 9 Weeks	Mfr. Part # QFSS-026-04.25-L-D-BM-GP Mouser Part # 200-FSS0260425LDBMGP	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip	Datasheet	Non-Stocked Lead-Time 9 Weeks	$15.916 $14.138 $12.555 $11.814 $11.803	Min.: 52 Mult.: 52
Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip QFSS-026-04.25-L-D-PC4-P-FR Samtec 150: $14.685 Non-Stocked Lead-Time 8 Weeks	Mfr. Part # QFSS-026-04.25-L-D-PC4-P-FR Mouser Part # 200-FSS0260425LDPC4	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip	Datasheet	Non-Stocked Lead-Time 8 Weeks	Reel $14.685 $14.674 $14.662	Min.: 150 Mult.: 150 : 150
Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip QFSS-026-04.25-L-D-PC4-P Samtec 52: $18.616 Non-Stocked Lead-Time 8 Weeks	Mfr. Part # QFSS-026-04.25-L-D-PC4-P Mouser Part # 200-FSS0260425LDPC4P	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	Non-Stocked Lead-Time 8 Weeks	$18.616 $17.089 $16.485 $16.474 Quote Quote	Min.: 52 Mult.: 52
Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip QFSS-032-04.25-L-D-DP-A-P Samtec 52: $22.159 Non-Stocked Lead-Time 8 Weeks	Mfr. Part # QFSS-032-04.25-L-D-DP-A-P Mouser Part # 200-FSS0320425LDDPAP	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	Non-Stocked Lead-Time 8 Weeks	$22.159 $20.245 $19.653 $19.641 View Quote	Min.: 52 Mult.: 52
Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip QFSS-032-04.25-L-D-DP-A-FR Samtec 175: $17.192 Non-Stocked Lead-Time 6 Weeks	Mfr. Part # QFSS-032-04.25-L-D-DP-A-FR Mouser Part # 200-FSS0320425LDDPAR	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip	Datasheet	Non-Stocked Lead-Time 6 Weeks	Reel $17.192 $15.061 Quote Quote	Min.: 175 Mult.: 175 : 175
Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip QFSS-048-04.25-L-D-DP-A-P-FR Samtec 150: $24.312 Non-Stocked Lead-Time 8 Weeks	Mfr. Part # QFSS-048-04.25-L-D-DP-A-P-FR Mouser Part # 200-FSS0480425LDDPA	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip	Datasheet	Non-Stocked Lead-Time 8 Weeks	Reel $24.312 $23.629 Quote Quote	Min.: 150 Mult.: 150 : 150
Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip QFSS-048-04.25-L-D-DP-A-P Samtec 1: $36.947 Non-Stocked Lead-Time 6 Weeks	Mfr. Part # QFSS-048-04.25-L-D-DP-A-P Mouser Part # 200-FSS0480425LDDPAP	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	Non-Stocked Lead-Time 6 Weeks	$36.947 $31.888 $30.886 $25.520 View $24.825 $24.267 Quote	Min.: 1 Mult.: 1
Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip QFSS-052-04.25-H-D-A-BM-P Samtec 52: $35.056 Non-Stocked Lead-Time 8 Weeks	Mfr. Part # QFSS-052-04.25-H-D-A-BM-P Mouser Part # 200-FSS0520425HDABMP	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip	Datasheet	Non-Stocked Lead-Time 8 Weeks	$35.056 $33.005 $32.993 View Quote	Min.: 52 Mult.: 52
Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip QFSS-052-04.25-L-D-A-P-TR Samtec 150: $17.408 Non-Stocked Lead-Time 6 Weeks	Mfr. Part # QFSS-052-04.25-L-D-A-P-TR Mouser Part # 200-FSS0520425LDAPTR	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	Non-Stocked Lead-Time 6 Weeks	Reel $17.408 $15.152 $14.446 Quote Quote	Min.: 150 Mult.: 150 : 150
Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip QFSS-052-04.25-L-D-PC4-P Samtec 1: $29.541 Non-Stocked Lead-Time 6 Weeks	Mfr. Part # QFSS-052-04.25-L-D-PC4-P Mouser Part # 200-FSS0520425LDPC4P	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	Non-Stocked Lead-Time 6 Weeks	$29.541 $29.530 $28.015 $26.898 View $24.392 $23.560 $23.549	Min.: 1 Mult.: 1
Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip QFSS-052-04.25-L-D-PC8-P-TR Samtec 150: $22.956 Non-Stocked Lead-Time 6 Weeks	Mfr. Part # QFSS-052-04.25-L-D-PC8-P-TR Mouser Part # 200-FSS0520425LDPC8	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip	Datasheet	Non-Stocked Lead-Time 6 Weeks	Reel $22.956	Min.: 150 Mult.: 150 : 150
Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip QFSS-064-04.25-L-D-DP-GP Samtec 26: $39.533 Non-Stocked Lead-Time 2 Weeks	Mfr. Part # QFSS-064-04.25-L-D-DP-GP Mouser Part # 200-FSS0640425LDDPGP	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	Non-Stocked Lead-Time 2 Weeks	$39.533 $38.359 $34.099 $32.424 View Quote	Min.: 26 Mult.: 26

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