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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 (GBP) 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: £12.42 5In Stock	Mfr. Part No. QMSS-016-06.75-L-D-DP-PC4 Mouser Part No 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	£12.42 £11.86 £11.22 £10.21	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: £11.65 84In Stock	Mfr. Part No. QMSS-016-06.75-L-D-DP-A Mouser Part No 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	£11.65 £10.59 £9.64	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: £12.10 1In Stock	Mfr. Part No. QMSS-026-06.75-L-D-A-K Mouser Part No 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	£12.10 £10.69 £9.72	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: £15.23 63In Stock	Mfr. Part No. QMSS-032-06.75-L-D-DP-A Mouser Part No 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	£15.23 £15.13	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: £15.76 70In Stock	Mfr. Part No. QMSS-052-06.75-L-D-A Mouser Part No 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	£15.76 £15.09 £13.72	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: £21.23 2In Stock	Mfr. Part No. QMSS-052-06.75-L-D-PC4 Mouser Part No 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	£21.23 £18.10 £16.46	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: £19.28 52In Stock	Mfr. Part No. QFS-052-04.25-H-D-A Mouser Part No 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	£19.28 £19.01 £17.31	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: £11.99 4In Stock	Mfr. Part No. QMSS-026-06.75-L-D-A Mouser Part No 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	£11.99 £10.56 £9.60	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: £14.83 15In Stock	Mfr. Part No. QMSS-026-06.75-L-D-PC4 Mouser Part No 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	£14.83 £12.68	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: £11.95 41In Stock	Mfr. Part No. QFSS-026-04.25-L-D-PT4 Mouser Part No 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	£11.95 £11.31 £10.62 £9.66	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: £17.08 104Expected 30/10/2026	Mfr. Part No. QFS-078-04.25-L-D-PT4 Mouser Part No 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 30/10/2026	£17.08 £15.64 £14.23	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: £11.51 104Expected 14/12/2026	Mfr. Part No. QFSS-026-04.25-L-D-A Mouser Part No 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 14/12/2026	£11.51 £10.03 £9.12	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: £19.92 6Expected 30/11/2026	Mfr. Part No. QFSS-048-04.25-L-D-DP-A Mouser Part No 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 30/11/2026	£19.92 £18.48 £17.77 £16.16	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: £13.68 Non-Stocked Lead-Time 9 Weeks	Mfr. Part No. QFSS-026-04.25-L-D-A-GP-P-TR Mouser Part No 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 £13.68 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: £10.48 Non-Stocked Lead-Time 9 Weeks	Mfr. Part No. QFSS-026-04.25-L-D-BM-GP Mouser Part No 200-FSS0260425LDBMGP	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip	Datasheet	Non-Stocked Lead-Time 9 Weeks	£10.48 £9.53	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: £9.68 Non-Stocked Lead-Time 8 Weeks	Mfr. Part No. QFSS-026-04.25-L-D-PC4-P-FR Mouser Part No 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 £9.68 £9.67 £9.66	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: £12.27 Non-Stocked Lead-Time 8 Weeks	Mfr. Part No. QFSS-026-04.25-L-D-PC4-P Mouser Part No 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	£12.27 £11.26 £11.16	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: £14.61 Non-Stocked Lead-Time 8 Weeks	Mfr. Part No. QFSS-032-04.25-L-D-DP-A-P Mouser Part No 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	£14.61 £13.34 £13.29	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: £11.33 Non-Stocked Lead-Time 6 Weeks	Mfr. Part No. QFSS-032-04.25-L-D-DP-A-FR Mouser Part No 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 £11.33 £10.30	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: £16.02 Non-Stocked Lead-Time 8 Weeks	Mfr. Part No. QFSS-048-04.25-L-D-DP-A-P-FR Mouser Part No 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 £16.02 £15.57	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: £24.35 Non-Stocked Lead-Time 6 Weeks	Mfr. Part No. QFSS-048-04.25-L-D-DP-A-P Mouser Part No 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	£24.35 £21.01 £20.35 £18.53	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: £23.10 Non-Stocked Lead-Time 8 Weeks	Mfr. Part No. QFSS-052-04.25-H-D-A-BM-P Mouser Part No 200-FSS0520425HDABMP	Samtec	Board to Board & Mezzanine Connectors 0.635 mm Q2 Shielded Ground Plane Socket Strip	Datasheet	Non-Stocked Lead-Time 8 Weeks	£23.10 £21.75 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: £11.47 Non-Stocked Lead-Time 6 Weeks	Mfr. Part No. QFSS-052-04.25-L-D-A-P-TR Mouser Part No 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 £11.47 £10.44	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: £19.47 Non-Stocked Lead-Time 6 Weeks	Mfr. Part No. QFSS-052-04.25-L-D-PC4-P Mouser Part No 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	£19.47 £19.46 £18.46 £17.72 View £16.07 £15.85	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: £15.13 Non-Stocked Lead-Time 6 Weeks	Mfr. Part No. QFSS-052-04.25-L-D-PC8-P-TR Mouser Part No 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 £15.13	Min.: 150 Mult.: 150 : 150

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