The Algor USB controller has been added to the AmigaOS 4.1 Classic hardware compatibility list.  Thanks to Jürgen for the report!

Are you an AmigaOS 4.1 Classic user? What hardware is working for you? Post a comment if you have something working and I will update the list!

Here is a work-in-progress list:

AmigaOS 4.1 Classic Compatibility Hardware list
[updated April 1st, 2012]

Amiga Computers (requires one of the PPC processor cards listed below)

Amiga 1200, 3000(T) and 4000(T)

Note: on-board SCSI of A3000 and A4000T is not supported, use the SCSI controller on the Cyberstorm PPC processor card which is fully supported with a native DMA enabled driver, or the on-board IDE controller in the Amiga 1200 or 4000(T), or one of the IDE controllers listed below.

Processor Cards

phase5 or DCE Blizzard PPC (all models – no SCSI driver yet)
phase5 or DCE Cyberstorm PPC (all models)

Memory Expansions

ZorRAM 128MB or 256MB (Amiga 3000(T) or Amiga 4000(T) only)
DKB 3128 Zorro Memory Card (Amiga 3000(T) or Amiga 4000(T) only)

PCI BusBoard Expansions

Elbox Mediator A1200 (all models)
Elbox Mediator 3/4000 (all models including the new MK-II version)
Maytay Prometheus
Firestorm (upgraded Prometheus)

A quick note about PCI cards in general: There are many different types of cards, with different BIOS, firmware, voltages, and circuit board layouts.  Therefore each card must be tested in your own machine to see if it works.  Even if a card is listed here it does not guarantee it will work in your machine due to the reasons above – you just have to try it.

Graphics Cards (PCI)

Sapphire ATI Radeon 9250 PCI 256MB (128MB visible) (card is 3.3 Volt or 5 Volt)
Elbox ATI Radeon 9250 PCI 256MB (5 Volt only)
Elbox ATI Radeon 9200 PCI 64MB (5 Volt only)
Radeon 9200 256MB (RV280/M9+) (3.3 Volt card working in modified 3.3 volt A4000 Mediator)
3DFX Voodoo Banshee 16MB PCI (no Warp3D, no overlay, no hardware pointer)
3DFX Voodoo 3 16MB (including Warp3D and DDC)
3DFX Voodoo 4 32MB (including Warp3D)
3DFX Voodoo 5 64MB (only 32MB recognized, including Warp3D)

Graphic Cards (Zorro)

Picasso II or II+
GVP Spectrum
Graffity
Picasso IV
Piccolo
Piccolo SD64
Retina Z3 (Altais)
Pixel64
Merlin
Domino
Cybervision 64
Cybervision 64/3D

Graphic Cards (other)

Cybervision PPC 8MB Permedia 2 (including Warp3D – beta)
Blizzardvision PPC 8MB Permedia 2 (including Warp3D – beta)

USB

Deneb USB Controller (requires Poseidon 4.x)
Subway USB Controller (requires Poseidon 4.x)
Highway USB Controller (requires Poseidon 4.x)
Algor USB Controller (requires Poseidon 4.x)

Network Cards (PCI)

Realtek 8029(AS) based PCI network card

Network Cards (Zorro)

Commodore 2065 (requires user supplied driver to be placed in DEVS:networks)
Zeus ConneXion (C= 2065 clone) (requires user supplied driver to be placed in DEVS:networks)
VillageTronic Ariadne II (requires user supplied driver to be placed in DEVS:networks)
X-Surf (needs a patched Ariadne driver).  The on-board IDE does not work.

SATA Controllers (PCI)

Sabrent 2 port SATA Raid PCI controller (Silicon Image 3512 chipset) (5V compatible)
No-Name 4 port SATA PCI Controller (Silicon Image 3114 chipset (5V compatible)

IDE Controllers

Silicon Image 0680 based PCI cards (Firestorm only)
Elbox FastATA 1200 MK-III (PIO-0 to PIO-5 modes supported)
4 port adapters IDEFix, EIDE99, FastATA (using scsi.device)

SCSI Adapters/Converters

ACard AEC-7720UW SCSI to IDE converter (Tested in A4000)

Sound Cards (PCI)

Generic PCI Sound Card, Model SCBAS104, ESS Solo-1 1969 chipset (5V Compatible)
Terratec ESS Solo-1 (TTSOLO1-N VER1.1)
ESS Solo-1 (1938 chipset) – confirmed by one user Note: not all variants of this card will work
Soundblaster 128 (see post here on instructions)

Sound Cards (built-in or Zorro)

Paula
Concierto IV (Picasso IV add-on sound card)

TV Tuners and video encoders

VillageTronic Picasso IV – Paloma IV (needs modification of kicklayout as documented in FAQ)
VillageTronic Picasso IV – Pablo II

Other Peripherals

Thermaltake BlacX ST0005U e-SATA Hard Drive Dock
(e-SATA bracket or backplate and working SATA PCI controller card required)

Known incompatible Cards:

phase5 FastLane Z3 (machine will not boot with card installed)
DCE GRex 1200 and 4000 (no documentation available)
AlienDesign Repulse Sound Card

Notes:

USB devices compatible with Poseidon are not listed here.  They all should work except for USB Sound cards which require an additional file named usbaudio.a.main to be placed in LIBS:  After a cold restart your USB sound card should be available in AHI prefs.  Poseidon must be started in order for the sound to work.

AmigaKit has confirmed in a post on Amiga.org that the new FastATA 1200 MK-IV and also Elbox Mediator 1200TX and 1200 LT4 PCI busboards, compatible with AmigaOS 4.1 Classic are IN STOCK.

Head on over to AmigaKit.com to check out the product pages!

Here is a quick test of hard disk transfer rates using scsispeed 4.2 (AmigaOS 3.9) and 4.3 (AmigaOS 4.1 Classic).  All tests done on the same machine.

Under AmigaOS 3.9 TLSFMem was enabled along with the MAPROM feature of the Cyberstorm PPC and 60ns ram settings to ensure maximum speed.

AmigaOS 4.1 Classic retail version was used with out-of-the-box recommended settings as per the Install guide and FAQ.

The Deneb USB Controller was set to Zorro III mode with DMA enabled under AmigaOS 3.9 and PIO enabled under AmigaOS 4.1 Classic.

Here are the transfer rate results:

 

And here are the CPU measurements.  CPU percentages were obtained using scsispeed’s built in function under AmigaOS 3.9, and CPUInfo.docky was used with AmigaOS 4.1 Classic.

 

I did some testing on the available Ethernet adapters for AmigaOS 4.1 and compared them against AmigaOS 3.9.  Read below for the test results!

Hardware Setup

Amiga Technologies A4000T
phase 5 Cyberstorm PPC with 233MHz 604e and 50MHz 68060
128MB RAM
Deneb Zorro III USB Controller – PIO mode in AmigaOS 4.1, DMA mode in AmigaOS 3.9
D-Link DUB-E100 100Mbit USB Ethernet Adapter
Elbox Mediator A3/4000T
Realtek 8029 based PCI network card 10Mbit
Realtek 8139 based PCI network card 100Mbit
Sapphire Radeon 9250 256MB PCI graphics card
ESS Solo-1 PCI sound card
Dual Boot AmigaOS 3.9 and AmigaOS 4.1 Classic Installed

Testing Methodology

For each test a large file was ftp’ed from a local ftp server into the Amiga 4000T’s RAM disk. Three different files were used – a 10MB file, a 40MB file, and a 102MB file.  The transfer rate at the end of the transfer was recorded for each test.  There was a normally a higher “peak” transfer rate, but since that was not sustained, I recorded the more realistic number at the end of the transfer.

FTP Client Used

I used the fastest client I could for each test.  Under AmigaOS 4.1 it was the included command line ftp program.  In AmigaOS 3.9 the AmiFTP client was fastest.  The included Genesis command line ftp client was very slow for some reason under AmigaOS 3.9.

TCP/IP Stack

AmigaOS 4.1 Classic is using RoadShow
AmigaOS 3.9 is using Genesis 68020 version

Operating System Notes

Stock AmigaOS 4.1 Classic install using DHCP.

AmigaOS 3.9 BB4 with MAPROM feature of Cyberstorm PPC enabled.  In addition, two tests were performed on each ethernet card with TLSFMem enabled.  TLSFMem is designed for AmigaOS 3.x only.   If you don’t know what TLSFMem is you can find information about it on Chris Hodges’ site here.

Results

OK, on to the results!  As you can see enabling TLSFMem under AmigaOS 3.9 makes a huge difference.
Not only does it lower by a little bit the CPU usage, it significantly increases the transfer rate and the overall system feels faster.  You can see the difference in speed between the RTL 8029 and RTL 8139 network cards on AmigaOS 3.9 in the chart below.

Under AmigaOS 4.1 Classic, the RTL8029 can reach 900 KB/sec and peak above that.  Using the USB adapter connected to the Deneb, you can get an even higher 1MB/sec.  There is very little difference in CPU usage in PIO or DMA mode on the Deneb – approximately 5% give or take.  Transfer rates are faster under AmigaOS 4.1, except when TLSFMem is enabled on AmigaOS 3.9.

All results measured in KB/sec (Kilo Bytes per second).

If you are interested in additional test results, you can check out the post by Olaf Barthel who published some results using Ariadne network cards.  The link is over on the English Amiga Board.

 

AmigaKit has announced pending availablility of the FastATA 1200 MK-IV IDE adapter for Amiga 1200 users.

“FastATA 1200 is the most advanced IDE interface for the Amiga 1200
computer, providing up to PIO-5 performance and LBA 48-bit
compatibility.

Continuing AmigaKit’s commitment to sponsoring development of Classic
Amiga hardware, Elbox have manufactured a new production run of this
popular IDE interface.

FastATA MK-IV is natively supported in the new AmigaOS 4.1 Classic.
It is also compatible with the older AmigaOS 3.0, 3.1, 3.5 and 3.9.

Includes the latest AllegroCDFS v3.6 and ATA3 v10 driver software.”

Direct Product Links:

http://amigakit.leamancomputing.com/catalog/product_info.php?products_id=1052

The FastATA 1200 MK-IV is in final quality testing now and will be available in approximately 2 weeks.

 

Just a short note, a PDF version of the article “Optimizing Poseidon for AmigaOS 4.1 Classic” is now available.  Head on over to the article here, or download the PDF directly here: Optimizing Poseidon for AmigaOS 4.1 Classic in PDF format.