American-made copper, fiber optic hardware, test equipment, and contract cable manufacturing — engineered for central office, OSP, and OEM applications worldwide.
Browse our full catalog. Click any category to explore products. Volume discounts apply automatically.
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About Us
About CSI
Leading Global Connectivity since 1980
For the past 45 years, CSI Technologies has provided specialized interconnect solutions, specifically copper and fiber optic solutions, for the telecommunications, medical, consumer electronics and defense industries.
Experience, flexibility, quality, price, speed and our location in the United States are just a few of the things that set us apart from the competition. CSI Technologies offers custom solutions with quick turnaround. CSI Technologies is a total solution provider ready to find and develop solutions for your connectivity needs. CSI Technologies is located in Belmont, New Hampshire, 90 miles north of Boston.
CSI Products Include
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Custom Copper Cable Harnesses
Engineered to your exact specifications with fast turnaround.
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Molded Cable Assemblies
Over-molded and custom cable assemblies for demanding environments.
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Fiber Distribution Hardware
American-made fiber distribution panels and interconnects.
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Terminal Blocks & Strips
High-density terminal blocks and strips for central office applications.
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Custom Electronic Sub-Assemblies & Full Contract Manufacturing
From prototype builds to high-volume production runs.
45+
Years in Business
1980
Year Established
9001 Certified
Industries Served
📡 Telecommunications
🏥 Medical
📱 Consumer Electronics
🛡️ Defense
📍 Located in Belmont, New Hampshire — 90 miles north of Boston
About Us
Contract Manufacturing Services
Manufactured in the USA at our Belmont, NH facility · ISO 9001 Certified
With over 45 years of experience supporting the electronics manufacturing industry, CSI Technologies has the tools, equipment, quality controls and expertise to help bring your products to market.
From turn key solutions to sub-assemblies we can help, from prototype builds, to low and high volume runs.
CMS Capabilities
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SMT & Thru-Hole PCBA's
Surface mount and through-hole printed circuit board assemblies.
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Custom Wire & Cable Assemblies
Custom wire-to-wire and wire-to-board assemblies built to specification.
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Mechanical & Electronic Assembly
Full mechanical assembly with electronic testing and verification.
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Regulatory Approval Services
UL, CSA, FCC, RoHS, and other compliance certifications handled.
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Weatherproofed & Potted Components
Epoxy, PC, ABS, PVC & Thermoplastic Elastomers for rugged applications.
Production Capabilities
Prototype Builds✓ Available
Low Volume Runs✓ Available
High Volume Runs✓ Available
Turn Key Solutions✓ Available
Sub-Assemblies✓ Available
Ready to start a project?
Contact our CMS team to discuss your requirements and get a quote.
Select a configuration below and click Contact for Inquiry — our team will get back to you. For full specifications and pricing, see the datasheet in the Downloads section below.
⏱ Lead Time — Ships in 2–3 Business Days
This item is available to order and typically ships within 2–3 business days. You'll receive a confirmation email with your estimated ship date. Need it urgently? Email us at customerservice@gotocsitech.com.
Exceeds current stock — use Request Quote for the full amount.
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Thank you for your order. Our team will review it and be in touch within 1 business day to confirm details and arrange payment.
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Review your order, enter your details, and choose how you'd like to pay.
1
Order Review
2
Order Information
These fields are printed on your packing slip and order confirmation for your internal tracking. Both are optional.
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Contact & Ship To
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Shipping Method
Standard — 1 to 5 Business Days
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UPS — Ground
1–5 business days from ship date
$8.49
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FedEx — Ground
1–5 business days from ship date
$8.49
Within 3 Business Days
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UPS — 3rd Day
Within 3 business days from ship date
$18.99
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FedEx — 3rd Day
Within 3 business days from ship date
$18.99
Within 2 Business Days
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UPS — 2nd Day Air
Within 2 business days from ship date
$13.99
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FedEx — 2nd Day
Within 2 business days from ship date
$13.99
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UPS — 2nd Day Air AM
Within 2 business days, AM delivery
$24.99
Next Business Day
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UPS — Next Day Air Saver
Next business day, end of day
$28.99
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FedEx — Standard Overnight
Next business day, end of day
$28.99
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UPS — Next Day Air
Next business day, 10:30 AM delivery
$31.99
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FedEx — Priority Overnight
Next business day, AM delivery
$31.99
📦 Bill Recipient — Use My Freight Account
Shipping billed directly to your UPS or FedEx account. Enter your account number below.
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Payment Method
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Net 30 Business Account
Invoice will be sent to your billing email. Payment due within 30 days of shipment. Available to approved business accounts.
ℹ️ New accounts may require credit approval. Our team will contact you if additional information is needed before processing.
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Wire Transfer / ACH
Pay by domestic wire transfer or ACH. Our banking details will be included on your invoice. Payment due before shipment unless on Net 30 terms.
🏦 Wire/ACH details will be provided on your invoice. Contact us at (877) 671-2218 if you need them in advance.
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Stripe / Credit Card Stripe
Pay securely by credit or debit card via Stripe. A processing fee of 2.9% + $0.30 applies.
🔒 Card details are handled securely by Stripe — CSI never sees your card number.
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Order Notes (optional)
Order Summary
Subtotal—
Stripe fee (2.9% + $0.30)—
Sales Tax—
⚠️ International Order — Tariffs & Duties May Apply
Your order total does not include import tariffs, duties, or customs fees. After your order is placed, our team will contact you at your provided email with a separate invoice for any applicable charges before shipment.
Shipping$8.49
TaxCalculated by CSI
Order Total—
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