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Currently Playing: The Bizarre SCSI-to-Ethernet Bridge For Old Macs

Thanks to PCBWay: https://pcbway.com/g/ynWgss How do you add Ethernet to a Macintosh with no expansion slot? Sonic Systems answered that question with the microSCSI Ethernet adapter: an external box that turns the Mac’s SCSI bus into a 10-megabit network interface. In this video, we connect one to a Macintosh Classic II and explore why Ethernet over SCSI was a practical solution for compact Macs and PowerBooks in the early 1990s. It all seemed to work just fine, except that MacTCPPing produced some unreliable results and presumably packet loss. Big time Thanks go to Peter from Germany for donating lots of Vintage Apple network gear 🙏 In this episode: 00:00 Intro 00:26 What Was The Sonic micro SCSI Ethernet Adapter? 01:45 How To Connect The Sonic micro SCSI Ethernet Adapter? 04:00 How To Install Sonic EtherLAN Drivers On The Macintosh 04:27 MacTCP Connection Setup 05:06 Troubleshooting ICMP - Why MacTCP Exposes Packet Loss 08:05 Conclusion 🔔 Subscribe for more retro hardware adventures! Want to join THE PHINTAGE SUPPORTERS or THE PHINTAGE ENTHUSIASTS community and get a mention in an upcoming video? Learn more here: https://www.youtube.com/@THEPHINTAGECOLLECTOR/join This video was made possible with support by: THE PHINTAGE ENTHUSIASTS: Alisha Manuela Stutz Christian Zerrahn David Schell Ernesto Leonardo Bertola Waseem al sammane ZyeByteVT THE PHINTAGE SUPPORTERS: Aaron Aluatis Balint Szikszay Brian Repinski CaffeinePizza Cecil Cinemint Clank CompuDroid Diego Valle GayManSam GrayT! Ian Cobb ihartmacz Jack Beckman Jack Rosenthal Lord Pingvin Luke Granger-Brown Matthew Veety Mia Farkas Mlok Karel MS-DOS Manfred nadrazhul PPCEmulator Roy Edmund Antaw SoftMASCII Steven Glogger Thomas Ganter Wobinu Films xcalibur839 Z098 Visit also THE PHINTAGE COLLECTOR website at https://www.thephintagecollector.ch for insights into my retro computer collection. This presentation, Copyright @ 2026 THE PHINTAGE COLLECTOR, Gianpaolo Del Matto. All rights reserved. Individual Copyrights apply for referenced material (see sources). Music composed by 🎶 Abdallah El-Ghannam https://ag.blahblah.studio | https://ag.blahblah.studio/ 🎶 rootkitty | https://soundcloud.com/rootkitty ℹ️ Sources: CONTEMPORARY PRODUCT COVERAGE Macworld, February 1994 — Ethernet via SCSI https://archive.org/stream/MacWorld_9402_February_1994/MacWorld_9402_February_1994_djvu.txt Macworld, May 1994 — Ethernet to Go and competing pocket adapters https://archive.org/stream/MacWorld_9405_May_1994/MacWorld_9405_May_1994_djvu.txt Macworld, May 1994 — Competing product, page 81 https://vintageapple.org/macworld/pdf/MacWorld_9405_May_1994.pdf MacConnection 1994 catalog — microSCSI listing, page 75 https://vintageapple.org/catalogs/pdf/MacConnection_catalog_1994.pdf 1994 microSCSI sale listing — dimensions, ports, LEDs, and cables https://groups.google.com/g/comp.sys.mac.wanted/c/xLUWN_Dh2Zw 1995 PowerBook microSCSI sale listing https://groups.google.com/g/misc.forsale.computers.mac-specific.portables/c/1FsTyzwMbO4 DRIVERS AND SOFTWARE https://vintageapple.org/macdrivers/network.shtml https://vintageapple.org/macdrivers/network.html https://www.macintoshrepository.org/8258-mac-drivers-museum-archive-1990-2003- https://www.mactcp.net/mactcp.html InfoAlley archive — Open Transport article: https://web.mit.edu/unna/mirrors/www.mug.jhmi.edu/mirrors/InfoAlley/0896/30/open.html RELATED HARDWARE https://68kmla.org/bb/threads/help-for-sonic-systems-micro-scsi-ethernet-adapter-driver.43031/ https://www.applefritter.com/node/6573 https://forums.macg.co/threads/mac-se-et-farallon-ethernet.1294138/ https://www.theweeks.org/toms-stuff/ENET-SCSI.html https://www.ardent-tool.com/SCSI/SCSI_Ethernet.html https://ps-2.kev009.com/ohland/SCSI_Ethernet/Adaptec_NODEM_Internals.html 1995 discussion of SCSI Ethernet controllers: https://groups.google.com/g/comp.sys.mac.comm/c/wjaydCF4wmg MACINTOSH, NETWORKING, AND SCSI BACKGROUND https://simple.wikipedia.org/wiki/Macintosh_Classic_II https://en.wikipedia.org/wiki/Macintosh_128K https://en.wikipedia.org/wiki/Processor_direct_slot https://en.wikipedia.org/wiki/SCSI https://en.wikipedia.org/wiki/Open_Transport COMPANY AND PRODUCT HISTORY https://www.linkedin.com/pulse/history-sonicwall-more-little-blue-boxes-prepared-dave-cafferata https://en.wikipedia.org/wiki/SonicWall https://grokipedia.com/page/sonic_ethernet_controller