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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-052-02-L-D-RA-MG Samtec 1: $34.099 7In Stock	Mfr. Part # QMS-052-02-L-D-RA-MG Mouser Part # 200-QMS05202LDRAMG	Samtec	Headers & Wire Housings 0.635 mm Q2 High-Speed Rugged Ground Plane Terminal Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	7In Stock	$34.099 $30.806 $27.764 $25.098 View $23.515 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-K-TR Samtec 1: $16.690 233In Stock	Mfr. Part # QMSS-016-06.75-L-D-DP-A-K-TR Mouser Part # 200-QMSS16675LDPAKTR	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Terminal Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	233In Stock	Cut Tape $16.690 $15.802 $14.890 $13.466 Reel $10.276 View $13.033 $9.912 $9.103 Quote	Min.: 1 Mult.: 1 : 300
Headers & Wire Housings 0.635 mm Q2 High-Speed Rugged Ground Plane Socket Strip QFS-032-04.25-L-D-DP Samtec 1: $13.865 4In Stock	Mfr. Part # QFS-032-04.25-L-D-DP Mouser Part # 200-QFS0320425LDDP	Samtec	Headers & Wire Housings 0.635 mm Q2 High-Speed Rugged Ground Plane Socket Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	4In Stock	$13.865 $13.808 $12.441 $11.598 View $10.299 $9.137 $8.864 Quote	Min.: 1 Mult.: 1
Headers & Wire Housings 0.635 mm Q2 High-Speed Rugged Ground Plane Socket Strip QFS-026-01-SL-D-RA-K Samtec 1: $22.307 40In Stock	Mfr. Part # QFS-026-01-SL-D-RA-K Mouser Part # 200-QFS02601SLDRAK	Samtec	Headers & Wire Housings 0.635 mm Q2 High-Speed Rugged Ground Plane Socket Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	40In Stock	$22.307 $22.068 $22.045 $20.006 View $19.060 $19.049 Quote	Min.: 1 Mult.: 1
Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip QFSS-016-04.25-L-D-DP-PT4 Samtec 1: $18.707 16In Stock	Mfr. Part # QFSS-016-04.25-L-D-DP-PT4 Mouser Part # 200-SS0160425LDDPPT4	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	16In Stock	$18.707 $17.716 $16.178 $16.166 View $14.378 $12.498 $10.618 $10.231	Min.: 1 Mult.: 1
Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip QFSS-026-04.25-H-D-A-GP Samtec 1: $24.905 51In Stock	Mfr. Part # QFSS-026-04.25-H-D-A-GP Mouser Part # 200-QFSS0260425HDAGP	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	51In Stock	$24.905 $23.583 $22.136 $21.920 View $19.675 $18.627 $17.989 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-PC4 Samtec 1: $33.005 26In Stock	Mfr. Part # QFSS-048-04.25-L-D-DP-PC4 Mouser Part # 200-SS0480425LDDPPC4	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	26In Stock	$33.005 $30.863 $29.553 $27.457 View $26.659 $25.645 Quote	Min.: 1 Mult.: 1
Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Terminal Strip QMSS-078-06.75-L-D-A Samtec 1: $32.720 19In Stock	Mfr. Part # QMSS-078-06.75-L-D-A Mouser Part # 200-QMSS0780675LDA	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Terminal Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	19In Stock	$32.720 $30.977 $28.277 $25.121 View $21.851 $20.347 Quote	Min.: 1 Mult.: 1
Headers & Wire Housings 0.635 mm Q2 High-Speed Rugged Ground Plane Socket Strip QFS-026-04.25-L-D-RF1 Samtec 1: $17.739 60In Stock	Mfr. Part # QFS-026-04.25-L-D-RF1 Mouser Part # 200-QFS02604.25LDRF1	Samtec	Headers & Wire Housings 0.635 mm Q2 High-Speed Rugged Ground Plane Socket Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	60In Stock	$17.739 $16.508 $15.711 $15.699 View 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-GP Samtec 1: $34.247 65In Stock	Mfr. Part # QFSS-052-04.25-H-D-A-GP Mouser Part # 200-QFSS0520425HDAGP	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	65In Stock	$34.247 $30.065 $28.505 $26.898 View $25.600 Quote	Min.: 1 Mult.: 1
Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Terminal Strip QMSS-026-06.75-H-D-PC8 Samtec 1: $32.287 47In Stock	Mfr. Part # QMSS-026-06.75-H-D-PC8 Mouser Part # 200-QMSS0260675HDPC8	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Terminal Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	47In Stock	$32.287 $30.795 $28.596 $24.301 View $24.289 $24.016 $23.708 Quote	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-K Samtec 1: $24.403 36In Stock	Mfr. Part # QMSS-032-06.75-L-D-DP-A-K Mouser Part # 200-MSS0320675LDDPAK	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Terminal Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	36In Stock	$24.403 $20.723 $20.461 $20.450 View 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-PC4 Samtec 1: $37.904 22In Stock	Mfr. Part # QFSS-052-04.25-H-D-PC4 Mouser Part # 200-QFSS0520425HDPC4	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	22In Stock	$37.904 $33.711 $32.674 $30.829 View $29.826 Quote	Min.: 1 Mult.: 1
Board to Board & Mezzanine Connectors 0.635 mm Q2 High-Speed Rugged Ground Plane Terminal Strip QMS-052-09.75-SL-D-A-K-FR Samtec 150: $19.618 150In Stock	Mfr. Part # QMS-052-09.75-SL-D-A-K-FR Mouser Part # 200-QMS0520975SLDAKR	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 High-Speed Rugged Ground Plane Terminal Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	150In Stock	Reel $19.618 $17.157 $17.146 View Quote	Min.: 150 Mult.: 150 : 150
Headers & Wire Housings 0.635 mm Q2 High-Speed Rugged Ground Plane Terminal Strip QMS-052-06.75-L-D-A Samtec 1: $21.339 1.917In Stock	Mfr. Part # QMS-052-06.75-L-D-A Mouser Part # 200-QMS05206.75LDA	Samtec	Headers & Wire Housings 0.635 mm Q2 High-Speed Rugged Ground Plane Terminal Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	1.917In Stock	$21.339 $18.730 $18.718 $18.707 View 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-P-TR Samtec 1: $17.476 110In Stock	Mfr. Part # QFSS-026-04.25-L-D-A-P-TR Mouser Part # 200-FSS0260425LDAPTR	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	110In Stock	Cut Tape $17.476 $14.925 $13.990 $12.908 Reel $12.304 View $12.680 $10.721 $8.727 Quote	Min.: 1 Mult.: 1 : 150
Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip QFSS-052-04.25-L-D-A Samtec 1: $24.962 460In Stock	Mfr. Part # QFSS-052-04.25-L-D-A Mouser Part # 200-QFSS05204.25LDA	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	460In Stock	$24.962 $21.749 $19.015 $17.602 View Quote	Min.: 1 Mult.: 1
Headers & Wire Housings 0.635 mm Q2 High-Speed Rugged Ground Plane Socket Strip QFS-078-01-SL-D-RA Samtec 1: $35.842 32In Stock	Mfr. Part # QFS-078-01-SL-D-RA Mouser Part # 200-QFS07801SLDRA	Samtec	Headers & Wire Housings 0.635 mm Q2 High-Speed Rugged Ground Plane Socket Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	32In Stock	$35.842 $34.691	Min.: 1 Mult.: 1
Headers & Wire Housings 0.635 mm Q2 High-Speed Rugged Ground Plane Socket Strip QFS-078-04.25-L-D-A-GP-P Samtec 1: $25.132 52In Stock	Mfr. Part # QFS-078-04.25-L-D-A-GP-P Mouser Part # 200-QFS0780425LDAGPP	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	$25.132 $23.013	Min.: 1 Mult.: 1
Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip QFSS-016-04.25-L-D-DP-PC4 Samtec 1: $17.966 16In Stock 52Expected 12/2/2026	Mfr. Part # QFSS-016-04.25-L-D-DP-PC4 Mouser Part # 200-QFSS01604.25LDDP	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	16In Stock 52Expected 12/2/2026	$17.966 $16.736 $16.178 $16.166 View $14.378 $12.498 $11.302 $11.290 Quote	Min.: 1 Mult.: 1
Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip QFSS-016-04.25-L-D-DP-A Samtec 1: $15.847 40In Stock	Mfr. Part # QFSS-016-04.25-L-D-DP-A Mouser Part # 200-QFSS0160425LDDPA	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	40In Stock	$15.847 $15.266 $13.352 $13.341 View 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-P Samtec 1: $16.155 2In Stock	Mfr. Part # QFSS-026-04.25-L-D-A-P Mouser Part # 200-QFSS02604.25LDAP	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	2In Stock	$16.155 $16.144 $14.252 $12.692 View $12.555 $12.429 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-PC4 Samtec 1: $20.461 55In Stock	Mfr. Part # QFSS-026-04.25-L-D-PC4 Mouser Part # 200-QFSS0260425LDPC4	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	55In Stock	$20.461 $18.263 $14.685 $13.728 View $13.717 $12.840 Quote	Min.: 1 Mult.: 1
Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip QFSS-078-04.25-L-D-A Samtec 1: $35.671 20In Stock	Mfr. Part # QFSS-078-04.25-L-D-A Mouser Part # 200-QFSS0780425LDA	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	20In Stock	$35.671 $30.441 $24.289 $22.797 View $19.379 Quote	Min.: 1 Mult.: 1
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

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Q2™ Shielded Ground Plane Connectors

Types of Connectors