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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 (CRC) Filter the results in the table by unit price based on your quantity.	Qty.
Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Terminal Strip QMSS-016-06.75-L-D-DP-PC4 Samtec 1: ₡8 613,70 2In Stock 280Expected 11/9/2026	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	2In Stock 280Expected 11/9/2026	₡8 613,70 ₡8 218,15 ₡7 775,75 ₡6 906,58 View ₡6 006,17 ₡5 110,97 ₡4 850,74 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: ₡8 077,62 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	₡8 077,62 ₡7 343,77 ₡6 167,51 ₡5 527,34 View ₡5 522,14 ₡5 163,02 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: ₡8 389,90 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	₡8 389,90 ₡7 406,22 ₡6 474,59 ₡6 354,88 View ₡6 349,68 ₡6 183,13	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: ₡10 284,40 15In Stock 56Expected 2/8/2027	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 56Expected 2/8/2027	₡10 284,40 ₡8 785,46 ₡7 682,07 ₡7 406,22 View ₡7 401,02 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 Samtec 1: ₡10 487,38 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	₡10 487,38 ₡8 369,08 ₡7 853,82 ₡7 749,73 Quote Quote	Min.: 1 Mult.: 1
Board to Board & Mezzanine Connectors 0.635MM Q2 HS SHIELDED GP HDR QMSS-052-06.75-L-D-A Samtec 1: ₡11 169,19 70In Stock	Mfr. Part # QMSS-052-06.75-L-D-A Mouser Part # 200-QMSS05206.75LDA	Samtec	Board to Board & Mezzanine Connectors 0.635MM Q2 HS SHIELDED GP HDR Learn More about Samtec q2 shielded b2b connectors	Datasheet	70In Stock	₡11 169,19 ₡10 456,15 ₡8 488,79 ₡8 238,97 View ₡7 994,35 Quote	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: ₡14 359,64 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	₡14 359,64 ₡12 548,42 ₡10 008,55 ₡9 394,40 View ₡8 499,20 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: ₡13 365,55 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	₡13 365,55 ₡13 183,39 ₡11 528,31 ₡10 705,97 View ₡10 700,77 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: ₡8 311,83 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	₡8 311,83 ₡7 322,95 ₡6 058,22 ₡5 506,52 View ₡5 501,32 ₡5 131,79 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-PT4 Samtec 1: ₡8 285,81 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	₡8 285,81 ₡7 843,41 ₡7 364,59 ₡6 542,25 View ₡5 683,48 ₡4 835,12 ₡4 663,37	Min.: 1 Mult.: 1
Headers & Wire Housings 0.635 mm Q2 High-Speed Rugged Ground Plane Socket Strip QFS-078-04.25-L-D-PT4 Samtec 1: ₡11 835,38 104Expected 11/23/2026	Mfr. Part # QFS-078-04.25-L-D-PT4 Mouser Part # 200-QFS07804.25LDPT4	Samtec	Headers & Wire Housings 0.635 mm Q2 High-Speed Rugged Ground Plane Socket Strip Learn More about Samtec q2 shielded b2b connectors	Datasheet	104Expected 11/23/2026	₡11 835,38 ₡10 846,50 ₡9 633,81 ₡8 374,29 View ₡7 119,97 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 Samtec 1: ₡7 983,94 104Expected 12/14/2026	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	104Expected 12/14/2026	₡7 983,94 ₡6 953,42 ₡5 548,16 ₡5 209,86 View ₡4 710,21 ₡4 460,39 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: ₡13 813,15 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	₡13 813,15 ₡12 813,86 ₡12 314,21 ₡10 940,18 View ₡9 508,90 ₡8 946,80 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: ₡9 482,88 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 ₡9 482,88 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: ₡7 270,90 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	₡7 270,90 ₡6 458,98 ₡5 735,53 ₡5 397,23 ₡5 392,02	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: ₡6 708,80 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 ₡6 708,80 ₡6 703,59 ₡6 698,39	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: ₡8 504,40 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	₡8 504,40 ₡7 806,98 ₡7 531,13 ₡7 525,93 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: ₡10 123,05 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	₡10 123,05 ₡9 248,67 ₡8 978,03 ₡8 972,82 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: ₡7 853,82 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 ₡7 853,82 ₡6 880,55 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: ₡11 106,73 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 ₡11 106,73 ₡10 794,45 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: ₡16 878,69 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	₡16 878,69 ₡14 567,83 ₡14 109,82 ₡11 658,42 View ₡11 340,94 ₡11 085,91 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: ₡16 014,72 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	₡16 014,72 ₡15 077,88 ₡15 072,68 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: ₡7 952,71 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 ₡7 952,71 ₡6 922,19 ₡6 599,50 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: ₡13 495,67 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	₡13 495,67 ₡13 490,46 ₡12 798,24 ₡12 288,19 View ₡11 143,16 ₡10 763,22 ₡10 758,02	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: ₡10 487,38 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 ₡10 487,38	Min.: 150 Mult.: 150 : 150

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Q2™ Shielded Ground Plane Connectors

Types of Connectors