.hide-partial { max-height: none; } .show-more { display: none; }

High Speed Series Connectors

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Types of Connectors

List Images

Results: 3,040

Applied Filters:

Series = High Speed

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

Circular MIL Spec Backshells 38999 DUMMY CON10

M85049/81-10
Amphenol Aerospace
1: $24.37
26In Stock

Mfr. Part No.
M85049/81-10

Mouser Part No
654-M85049/81-10

Amphenol Aerospace

Circular MIL Spec Backshells 38999 DUMMY CON10

Datasheet

26In Stock

$24.37

$20.71

$19.69

View

Min.: 1
Mult.: 1

Circular MIL Spec Contacts MIL-DTL-38999 III QUADRAX SKT CONTACT

21-033385-051
Amphenol Aerospace
1: $118.87
176In Stock

Mfr. Part No.
21-033385-051

Mouser Part No
654-21-033385-051

Amphenol Aerospace

Circular MIL Spec Contacts MIL-DTL-38999 III QUADRAX SKT CONTACT

Learn More

Datasheet

176In Stock

$118.87

$111.01

$108.79

$106.64

View

Min.: 1
Mult.: 1

Circular MIL Spec Contacts 8 GAUGE SOCKET

M39029/91-530
Amphenol Aerospace
1: $43.17
639In Stock

Mfr. Part No.
M39029/91-530

Mouser Part No
654-M39029/91-530

Amphenol Aerospace

Circular MIL Spec Contacts 8 GAUGE SOCKET

Datasheet

639In Stock

$43.17

$36.98

$35.00

$34.99

View

Min.: 1
Mult.: 1

Circular MIL Spec Tools, Hardware & Accessories JANMS27510F14CL

MS27510F14CL
Amphenol Aerospace
1: $80.25
24In Stock

Mfr. Part No.
MS27510F14CL

Mouser Part No
523-MS27510F14CL

Amphenol Aerospace

Circular MIL Spec Tools, Hardware & Accessories JANMS27510F14CL

24In Stock

$80.25

$72.19

View

Min.: 1
Mult.: 1

Circular MIL Spec Contacts Pin Contact SZ 12

M39029/28-409
Amphenol Aerospace
1: $56.71
6In Stock

Mfr. Part No.
M39029/28-409

Mouser Part No
523-M39029/28-409

Amphenol Aerospace

Circular MIL Spec Contacts Pin Contact SZ 12

Datasheet

6In Stock

$56.71

View

Min.: 1
Mult.: 1

Circular MIL Spec Tools, Hardware & Accessories JANMS27501B11A

MS27501B11A
Amphenol Aerospace
1: $94.51
23In Stock

Mfr. Part No.
MS27501B11A

Mouser Part No
523-MS27501B11A

Amphenol Aerospace

Circular MIL Spec Tools, Hardware & Accessories JANMS27501B11A

Datasheet

23In Stock

$94.51

$92.83

View

Min.: 1
Mult.: 1

Circular MIL Spec Tools, Hardware & Accessories JANMS27501B11CN

MS27501B11CN
Amphenol Aerospace
1: $108.97
6In Stock
17Expected 23/03/2026

Mfr. Part No.
MS27501B11CN

Mouser Part No
523-MS27501B11CN

Amphenol Aerospace

Circular MIL Spec Tools, Hardware & Accessories JANMS27501B11CN

Datasheet

6In Stock

17Expected 23/03/2026

$108.97

View

Min.: 1
Mult.: 1

Circular MIL Spec Tools, Hardware & Accessories JANMS27501B25CM

MS27501B25CM
Amphenol Aerospace
1: $111.74
21In Stock

Mfr. Part No.
MS27501B25CM

Mouser Part No
523-MS27501B25CM

Amphenol Aerospace

Circular MIL Spec Tools, Hardware & Accessories JANMS27501B25CM

21In Stock

$111.74

$102.55

View

Min.: 1
Mult.: 1

Circular MIL Spec Tools, Hardware & Accessories JANMS27501F15A

MS27501F15A
Amphenol Aerospace
1: $76.12
17In Stock

Mfr. Part No.
MS27501F15A

Mouser Part No
523-MS27501F15A

Amphenol Aerospace

Circular MIL Spec Tools, Hardware & Accessories JANMS27501F15A

17In Stock

$76.12

$67.66

View

Min.: 1
Mult.: 1

Circular MIL Spec Tools, Hardware & Accessories JANMS27501F21A

MS27501F21A
Amphenol Aerospace
1: $76.12
25In Stock

Mfr. Part No.
MS27501F21A

Mouser Part No
523-MS27501F21A

Amphenol Aerospace

Circular MIL Spec Tools, Hardware & Accessories JANMS27501F21A

25In Stock

$76.12

$67.66

$65.06

View

Min.: 1
Mult.: 1

Circular MIL Spec Tools, Hardware & Accessories JANMS27510B16CL

MS27510B16CL
Amphenol Aerospace
1: $101.96
15In Stock

Mfr. Part No.
MS27510B16CL

Mouser Part No
523-MS27510B16CL

Amphenol Aerospace

Circular MIL Spec Tools, Hardware & Accessories JANMS27510B16CL

Datasheet

15In Stock

$101.96

$92.98

View

Min.: 1
Mult.: 1

Circular MIL Spec Strain Reliefs & Adapters CLAMP-BLD

10-436792-119
Amphenol Aerospace
1: $44.67
12In Stock
48Expected 10/04/2026

Mfr. Part No.
10-436792-119

Mouser Part No
654-10-436792-119

Amphenol Aerospace

Circular MIL Spec Strain Reliefs & Adapters CLAMP-BLD

12In Stock

48Expected 10/04/2026

$44.67

$36.81

$35.37

$33.86

Min.: 1
Mult.: 1

Circular MIL Spec Strain Reliefs & Adapters STRAIN RELIEF SIZE 15

10-436792-159
Amphenol Aerospace
1: $115.94
3In Stock

Mfr. Part No.
10-436792-159

Mouser Part No
654-10-436792-159

Amphenol Aerospace

Circular MIL Spec Strain Reliefs & Adapters STRAIN RELIEF SIZE 15

Datasheet

3In Stock

$115.94

View

Min.: 1
Mult.: 1

Circular MIL Spec Tools, Hardware & Accessories CABLE CLAMP SHELL 17

10-552681-179
Amphenol Aerospace
1: $191.36
5In Stock

Mfr. Part No.
10-552681-179

Mouser Part No
654-10-552681-179

Amphenol Aerospace

Circular MIL Spec Tools, Hardware & Accessories CABLE CLAMP SHELL 17

Datasheet

5In Stock

$191.36

View

Min.: 1
Mult.: 1

Standard Circular Contacts HD 38999 SKT 23 CRIMP

10-597759-735
Amphenol Aerospace
1: $17.11
43In Stock

Mfr. Part No.
10-597759-735

Mouser Part No
654-10-597759-735

Amphenol Aerospace

Standard Circular Contacts HD 38999 SKT 23 CRIMP

Datasheet

43In Stock

$17.11

$14.83

$14.05

View

Min.: 1
Mult.: 1

Circular MIL Spec Contacts 8P Pin use with Cbl GORE RCN8966-24

21-032904-011
Amphenol Aerospace
1: $388.04
1In Stock
3Expected 11/05/2026

Mfr. Part No.
21-032904-011

Mouser Part No
654-21-032904-011

Amphenol Aerospace

Circular MIL Spec Contacts 8P Pin use with Cbl GORE RCN8966-24

Learn More

Datasheet

1In Stock

3Expected 11/05/2026

$388.04

View

Min.: 1
Mult.: 1

Circular MIL Spec Contacts CONTACT, PIN -OCTONET

21-032904-121
Amphenol Aerospace
1: $315.87
2In Stock
New Product

Mfr. Part No.
21-032904-121

Mouser Part No
654-21-032904-121

New Product

Amphenol Aerospace

Circular MIL Spec Contacts CONTACT, PIN -OCTONET

Learn More

2In Stock

$315.87

View

Min.: 1
Mult.: 1

Circular MIL Spec Contacts Hi Frequency Socket Contact

21-033101-029
Amphenol Aerospace
1: $136.29
2In Stock

Mfr. Part No.
21-033101-029

Mouser Part No
654-21-033101-029

Amphenol Aerospace

Circular MIL Spec Contacts Hi Frequency Socket Contact

Learn More

2In Stock

$136.29

View

Min.: 1
Mult.: 1

Circular MIL Spec Contacts SOCKET COAX; LJTR

21-033101-037
Amphenol Aerospace
1: $104.89
9In Stock

Mfr. Part No.
21-033101-037

Mouser Part No
654-21-033101-037

Amphenol Aerospace

Circular MIL Spec Contacts SOCKET COAX; LJTR

9In Stock

$104.89

View

Min.: 1
Mult.: 1

Circular MIL Spec Contacts 38999 II 12 SKT COAX CONTACT

21-033121-546
Amphenol Aerospace
1: $55.90
12In Stock
17On Order

Mfr. Part No.
21-033121-546

Mouser Part No
654-21-033121-546

Amphenol Aerospace

Circular MIL Spec Contacts 38999 II 12 SKT COAX CONTACT

Learn More

12In Stock

17On Order

$55.90

$53.23

Min.: 1
Mult.: 1

Circular MIL Spec Contacts BUSHING

21-033321-005
Amphenol Aerospace
1: $17.55
3In Stock
1,172On Order

Mfr. Part No.
21-033321-005

Mouser Part No
654-21-033321-005

Amphenol Aerospace

Circular MIL Spec Contacts BUSHING

Learn More

Datasheet

3In Stock

1,172On Order

$17.55

$14.30

$13.90

$13.71

$12.85

Min.: 1
Mult.: 1

Circular MIL Spec Contacts 38999 SZ 8 SEALPGGYBCK GRT

21-033321-010
Amphenol Aerospace
1: $12.34
58In Stock
New At Mouser

Mfr. Part No.
21-033321-010

Mouser Part No
654-21-033321-010

New At Mouser

Amphenol Aerospace

Circular MIL Spec Contacts 38999 SZ 8 SEALPGGYBCK GRT

Datasheet

58In Stock

$12.34

$11.19

$10.65

$10.04

View

Min.: 1
Mult.: 1

Circular MIL Spec Contacts 8P 100 OHMS PIN

21-033387-051
Amphenol Aerospace
1: $329.12
1In Stock

Mfr. Part No.
21-033387-051

Mouser Part No
654-21-033387-051

Amphenol Aerospace

Circular MIL Spec Contacts 8P 100 OHMS PIN

Datasheet

1In Stock

$329.12

View

Min.: 1
Mult.: 1

Circular MIL Spec Contacts BMZ 2 GHZ SKT

21-033449-11HF
Amphenol Aerospace
1: $158.80
100In Stock

Mfr. Part No.
21-033449-11HF

Mouser Part No
654-21-033449-11HF

Amphenol Aerospace

Circular MIL Spec Contacts BMZ 2 GHZ SKT

Datasheet

100In Stock

$158.80

$145.75

$145.29

$133.92

Min.: 1
Mult.: 1

Circular MIL Spec Contacts CONTACT QUADRAX

21-033470-151
Amphenol Aerospace
1: $166.33
32In Stock

Mfr. Part No.
21-033470-151

Mouser Part No
654-21-033470-151

Amphenol Aerospace

Circular MIL Spec Contacts CONTACT QUADRAX

Learn More

Datasheet

32In Stock

$166.33

$165.03

Min.: 1
Mult.: 1

High Speed Series Connectors

Types of Connectors

Customer Service Office

Company

Resources

Support