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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 (HKD) 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-A-K-TR Samtec 1: HK$120.42 233In Stock	Mfr. Part No. QMSS-016-06.75-L-D-DP-A-K-TR Mouser Part No 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 HK$120.42 HK$114.01 HK$107.44 HK$97.16 Reel HK$74.14 View HK$94.04 HK$71.51 HK$65.68 Quote	Min.: 1 Mult.: 1 : 300
Headers & Wire Housings 0.635 mm Q2 High-Speed Rugged Ground Plane Terminal Strip QMS-052-02-L-D-RA-MG Samtec 1: HK$246.02 7In Stock	Mfr. Part No. QMS-052-02-L-D-RA-MG Mouser Part No 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	HK$246.02 HK$222.27 HK$200.32 HK$181.09 View HK$169.66 Quote	Min.: 1 Mult.: 1
Headers & Wire Housings 0.635 mm Q2 High-Speed Rugged Ground Plane Socket Strip QFS-032-04.25-L-D-DP Samtec 1: HK$100.04 4In Stock	Mfr. Part No. QFS-032-04.25-L-D-DP Mouser Part No 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	HK$100.04 HK$99.63 HK$89.76 HK$83.68 View HK$74.31 HK$65.92 HK$63.95 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: HK$160.95 40In Stock	Mfr. Part No. QFS-026-01-SL-D-RA-K Mouser Part No 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	HK$160.95 HK$159.22 HK$159.06 HK$144.34 View HK$137.52 HK$137.44 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: HK$134.97 16In Stock	Mfr. Part No. QFSS-016-04.25-L-D-DP-PT4 Mouser Part No 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	HK$134.97 HK$127.82 HK$116.72 HK$116.64 View HK$103.74 HK$90.17 HK$76.61 HK$73.82	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: HK$241.42 26In Stock	Mfr. Part No. QFSS-048-04.25-L-D-DP-PC4 Mouser Part No 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	HK$241.42 HK$226.38 HK$213.23 HK$196.54 View HK$189.55 HK$181.42 Quote	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: HK$179.69 51In Stock	Mfr. Part No. QFSS-026-04.25-H-D-A-GP Mouser Part No 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	HK$179.69 HK$170.15 HK$159.71 HK$158.15 View HK$142.21 HK$134.40 HK$129.79 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: HK$127.99 60In Stock	Mfr. Part No. QFS-026-04.25-L-D-RF1 Mouser Part No 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	HK$127.99 HK$119.11 HK$113.35 Quote 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: HK$236.08 19In Stock	Mfr. Part No. QMSS-078-06.75-L-D-A Mouser Part No 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	HK$236.08 HK$223.50 HK$204.02 HK$181.25 View HK$157.66 HK$146.81 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: HK$247.09 65In Stock	Mfr. Part No. QFSS-052-04.25-H-D-A-GP Mouser Part No 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	HK$247.09 HK$216.93 HK$205.75 HK$194.16 View HK$184.70 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: HK$232.95 47In Stock	Mfr. Part No. QMSS-026-06.75-H-D-PC8 Mouser Part No 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	HK$232.95 HK$222.19 HK$206.32 HK$175.33 View HK$173.44 HK$171.14 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: HK$273.48 22In Stock	Mfr. Part No. QFSS-052-04.25-H-D-PC4 Mouser Part No 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	HK$273.48 HK$245.70 HK$237.23 HK$222.68 View HK$215.20 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: HK$176.32 36In Stock	Mfr. Part No. QMSS-032-06.75-L-D-DP-A-K Mouser Part No 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	HK$176.32 HK$149.77 HK$147.63 View 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: HK$141.55 150In Stock	Mfr. Part No. QMS-052-09.75-SL-D-A-K-FR Mouser Part No 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 HK$141.55 HK$123.79 HK$123.71 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: HK$153.96 1,917In Stock	Mfr. Part No. QMS-052-06.75-L-D-A Mouser Part No 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	HK$153.96 HK$135.14 HK$135.05 HK$134.97 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: HK$126.09 138In Stock	Mfr. Part No. QFSS-026-04.25-L-D-A-P-TR Mouser Part No 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	138In Stock	Cut Tape HK$126.09 HK$107.68 HK$100.94 HK$93.13 Reel HK$88.78 View HK$91.49 HK$77.35 HK$62.97 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: HK$180.10 460In Stock	Mfr. Part No. QFSS-052-04.25-L-D-A Mouser Part No 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	HK$180.10 HK$156.92 HK$137.19 HK$127.00 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: HK$258.60 32In Stock	Mfr. Part No. QFS-078-01-SL-D-RA Mouser Part No 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	HK$258.60 HK$250.30	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: HK$181.33 52In Stock	Mfr. Part No. QFS-078-04.25-L-D-A-GP-P Mouser Part No 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	HK$181.33 HK$166.04	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: HK$129.63 16In Stock 52Expected 2/12/2026	Mfr. Part No. QFSS-016-04.25-L-D-DP-PC4 Mouser Part No 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 2/12/2026	HK$129.63 HK$120.75 HK$116.72 HK$116.64 View HK$103.74 HK$90.17 HK$81.54 HK$81.46 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: HK$114.34 40In Stock	Mfr. Part No. QFSS-016-04.25-L-D-DP-A Mouser Part No 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	HK$114.34 HK$110.15 HK$96.34 HK$96.26 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: HK$116.56 2In Stock	Mfr. Part No. QFSS-026-04.25-L-D-A-P Mouser Part No 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	HK$116.56 HK$116.48 HK$102.83 HK$91.57 View HK$90.58 HK$89.68 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: HK$147.63 55In Stock	Mfr. Part No. QFSS-026-04.25-L-D-PC4 Mouser Part No 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	HK$147.63 HK$131.77 HK$105.96 HK$99.05 View HK$98.97 HK$92.64 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: HK$257.37 20In Stock	Mfr. Part No. QFSS-078-04.25-L-D-A Mouser Part No 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	HK$257.37 HK$219.64 HK$175.25 HK$164.48 View HK$139.82 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: HK$169.91 60In Stock	Mfr. Part No. QMS-026-09.75-S-D-A Mouser Part No 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	HK$169.91 HK$165.80 HK$163.66 HK$151.91 View HK$134.97 HK$122.56 HK$119.68 Quote	Min.: 1 Mult.: 1

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Q2™ Shielded Ground Plane Connectors

Types of Connectors