MOTHERBOARDS 486 (socket 2,3) ============================= INTERCOMP - MODULAR INTERCOMP, INC. 486 486 PERSONAL WORKSTATION 32-bit VESA local bus slots (2), 10 base T ethernet INTERCOMP, INC. 486 486ISA None INTERCOMP, INC. 486 EISA 486 None INTERCOMP, INC. 486 ILC VL3/486 32-bit VESA local bus slots (2) INTERCOMP, INC. 486 ILC VL33/486 32-bit VESA local bus slots (2) INTERLOGIC INDUSTRIES 486 ASC486 VER. C Floppy drive interface, IDE interface, parallel port, serial ports (2) INTERLOGIC INDUSTRIES 486 ESC486 SINGLE BOARD COMPUTER PS/2 mouse port INTERLOGIC INDUSTRIES 486 SC486DX Bus mouse port, floppy drive interface, IDE interface, parallel port, serial ports (2) INTERNATIONAL INSTRUMENTATION, INC. 486 OEM1/L-ISA 32-bit local bus slot IPC CORPORATION 486 IPC DYNASTY HE/VALUEMAGIC (MB486HE #40) 32-bit VESA local bus slots (2) IPC CORPORATION 486 IPC DYNASTY HE/VALUEMAGIC/OFFICEMAGIC 32-bit VESA local bus slots (2) IPC CORPORATION 486 IPC SE/SEL/VALUEMAGIC/FAMILYMAGIC (MB486PCI) 32-bit PCI slots (4), floppy drive interface, IDE interface, parallel port, serial ports (2) IPC CORPORATION, LTD. 486 IPC DYNASTY HE 32-bit VESA local bus slots (2) IPC CORPORATION, LTD. 486 IPC DYNASTY HE (MB486HE#20) 32-bit VESA local bus slots (2) IPC CORPORATION, LTD. 486 IPC DYNASTY LE (MB486LE#50) Floppy drive interface, IDE interface, parallel port, serial ports (2), VGA feature connector, VGA port, riser slot IPC CORPORATION, LTD. 486 IPC DYNASTY LE/IPC HOMEMAGIC (MB486LE#51) Floppy drive interface, IDE interface, parallel port, serial ports (2), riser slot IPC CORPORATION, LTD. 486 IPC FAMILY MAGIC 32-bit VESA local bus slots (3), green PC connector IPC CORPORATION, LTD. 486 IPC MBPOSIIIS 32-bit external memory card, 32-bit system memory card, 32-bit VESA local bus slots (2), 32-bit PCI slots (2), bus mouse port, floppy drive interface, game port, green PC connector, IDE interface, IDE interfaces (2), SCSI connector, parallel port, PS IPC CORPORATION, LTD. 486 IPC MBPOSIIIS-25 Floppy drive interfaces (2), IDE interface, parallel port, serial ports (2), VGA port, riser slot, numeric display connector, numeric display power connector, internal numeric display connector, external numeric display connector, printer power conne IPC CORPORATION, LTD. 486 IPC OFFICEMAGIC/ IPC GREEN PC (MB486GHE#10) 32-bit VESA local bus slots (2), green PC connector IPC CORPORATION, LTD. 486 IPC VALUEMAGIC (MB486PCI#10) 32-bit PCI slots (3), floppy drive interface, IDE interfaces (2), parallel port, serial ports (2) IPC CORPORATION, LTD. 486 IPC VALUEMAGIC SERIES DESKTOP None ISA/EISA, INC. 486 486B None ISA/EISA, INC. 486 NIC-ware-486 None J & J TECHNOLOGY, INC 486 JJ.109 CPU BOARD Floppy drive interface, green PC connector, IDE interface, parallel port, serial ports (2), PC/104 connectors (2), VGA module connector J-BOND COMPUTER SYSTEMS CORPORATION 486 486 CACHE None J-BOND COMPUTER SYSTEMS CORPORATION 486 486 VL450C-1 32-bit VESA local bus slots (2) J-BOND COMPUTER SYSTEMS CORPORATION 486 486-33/25/20E None J-BOND COMPUTER SYSTEMS CORPORATION 486 JB A450CC None J-BOND COMPUTER SYSTEMS CORPORATION 486 PCI 486 32-bit PCI bus slots (3), SCSI interface J-BOND COMPUTER SYSTEMS CORPORATION 486 PCI400C-C 32-bit PCI slots (3), floppy drive interface, game interface, green PC connector, IDE interfaces (2), parallel port, serial ports (2) J-BOND COMPUTER SYSTEMS CORPORATION 486 PCI400C-D 32-bit PCI slot, Ethernet 10Base2 connector, Ethernet 10BaseT connector, floppy drive interface, game port, green PC connector, IDE interfaces (2), SCSI connector, parallel port, PS/2 mouse port, serial ports (2), VGA port, riser slot J-MARK COMPUTER CORPORATION 486 486SX/DX VERSION II None J-MARK COMPUTER CORPORATION 486 486WB Cache None J-MARK COMPUTER CORPORATION 486 J-446A (V2.0) 32-bit PCI slots (3), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, serial ports (2) J-MARK COMPUTER CORPORATION 486 JET-486 None J-MARK COMPUTER CORPORATION 486 JET-486 CACHE 486-33/486SX-25 32-bit external memory card slot J-MARK COMPUTER CORPORATION 486 JET-486DX/SX 20/25 NON-CACHE None JATON CORPORATION 486 JAM-4001 None JC INFORMATION SYSTEMS CORPORATION 486 486 SX/DX MODEL 270 32-bit memory expansion slot JC INFORMATION SYSTEMS CORPORATION 486 HIGH PERFORMANCE 486 SX/DX (MODEL 2270) 32-bit VESA local bus slots (2) JC INFORMATION SYSTEMS CORPORATION 486 MODEL 2030 32-bit VESA card slot JC INFORMATION SYSTEMS CORPORATION 486 MODEL 2060 16-bit riser card slot, bus mouse port, diagnostic port JETPRO INFOTECH COMPANY, LTD. 486 MB-3M(MB-340C4M) None JETPRO INFOTECH COMPANY, LTD. 486 MB-4F None JETPRO INFOTECH COMPANY, LTD. 486 MB-4F2 32-bit local bus card slot JETPRO INFOTECH COMPANY, LTD. 486 MB-4F3(MB-450C4FV) 32-bit VESA local bus slots (2) JETPRO INFOTECH COMPANY, LTD. 486 MB-60 EISA486/33/50 None JETPRO INFOTECH COMPANY, LTD. 486 MB-6U(MB-450CBU) 32-bit proprietary local bus card JOINDATA SYSTEMS, INC. 486 G486EB None JOINDATA SYSTEMS, INC. 486 G486EVL 32-bit VESA local bus slots (2) JOINDATA SYSTEMS, INC. 486 G486HVL 32-bit VESA local bus card slots (2) JOINDATA SYSTEMS, INC. 486 G486PE None JOINDATA SYSTEMS, INC. 486 G486PEL 32-bit local bus card slots (2) JOINDATA SYSTEMS, INC. 486 G486PLB 32-bit local bus VGA card slot JOINDATA SYSTEMS, INC. 486 G486SLC 32-bit external memory card slot JOINDATA SYSTEMS, INC. 486 G486SVL 32-bit VESA local bus slots (2) JOINDATA SYSTEMS, INC. 486 G486U/G486USX None JOINDATA SYSTEMS, INC. 486 G486ULB 32-bit local bus card slots (2) JPN CORPORATION 486 MB-486 DX-33 UM None KINGSTON TECHNOLOGY CORPORATION 486 486/33PD3, 25PS3, 33PD3-P70, 33PS3-P70 PROCESSOR UPGRADE BOARD NONE KINGSTON TECHNOLOGY CORPORATION 486 MCMASTER MC33PD/MC25PS 32-bit VESA local processor slot KLH 486 80386DX Parallel port, serial ports (2), VGA port, floppy drive interface, IDE interface, external memory card, CPU slot, riser slot KOUWELL ELECTRONIC CORPORATION 486 486-33EZ None KOUWELL ELECTRONIC CORPORATION 486 FR-486 None KOUWELL ELECTRONIC CORPORATION 486 FR-486B None KOUWELL ELECTRONIC CORPORATION 486 KW-420B 32-bit external memory card slot KOUWELL ELECTRONIC CORPORATION 486 KW-420C None KRIS TECHNOLOGIES 486 80386/80486 AT 32-bit local bus card slot L & K MICRO SUPPLY, INC. 486 486 CONTAQ CACHE None LANNER ELECTRONICS, INC. 486 AP-40AHD Floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), IR connector, PC/104 connectors (2) LANNER ELECTRONICS, INC. 486 AP-4100AA Floppy drive interface, IDE interface, parallel port, serial ports (2), PC/104 connectors (2) LANNER ELECTRONICS, INC. AM 5X86 AP-486LH Ethernet 10BaseT connector, floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), VGA port, IR connector, PC/104 connectors (2) LANNER ELECTRONICS, INC. Cyrix MediaGX EM-520 Floppy drive interface, IDE interface, parallel port, serial ports (4), riser slot, IR connector, USB connectors (2), PC/104 connectors (2), TV output, Ethernet 10Base-T connector, game port, audio in - CD-ROM, microphone in, line in LASER COMPUTER, INC. 486 LASER 486 MODULAR EISA External memory cards (2), external CPU card, PS/2 mouse port LEADING EDGE PRODUCTS, INC. 486 MODEL D4 PLUS External CPU card, floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2) LEADING EDGE PRODUCTS, INC. 486 MODEL D4/MT 32-bit local bus card slot, CPU card, floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial port LEADING EDGE PRODUCTS, INC. 486 WINPRO 486 None LEADING EDGE PRODUCTS, INC. 486 WINPRO 486E None LEADING EDGE PRODUCTS, INC. 486 WINTOWER 486PC 32-bit VESA local bus slots (2), IDE interface, PS/2 mouse port LION COMPUTERS, INC. 486 486 MINI EISA/VP 32-bit VESA local bus slots (2) LION COMPUTERS, INC. 486 486-SUPER EISA/VP 32-bit VESA card slot LION COMPUTERS, INC. 486 LOCAL ISA 486 USA 32-bit VESA local bus slots (2) LION COMPUTERS, INC. 486 LOCAL ISA 486 USA REV.1 32-bit VESA local bus slots (2) LION COMPUTERS, INC. 486 NICE EISA 486 DX/DX2/SX-50 None LION COMPUTERS, INC. 486 NICE GREEN 486/PCI 32-bit PCI local bus slots (4) LION COMPUTERS, INC. 486 NICE GREEN-VL/ISA 32-bit VESA local bus slots (3) LION COMPUTERS, INC. 486 NICE PLUS 486 DX/SX-50 32-bit external memory card slot LION COMPUTERS, INC. 486 NICE-EISA1 None LION COMPUTERS, INC. 486 NICE-EISA2 None LION COMPUTERS, INC. 486 SUPER EISA REV. 1 None LION COMPUTERS, INC. 486 VALUE VLB/+ 32-bit VESA local bus slots (3), green PC connector M TECHNOLOGY, INC. 486 R407 VESA 486 32-bit VESA local bus slots (3), green PC connector M TECHNOLOGY, INC. 486 R407E VESA 486 32-bit VESA local bus slots (3), green PC connector M TECHNOLOGY, INC. 486 R418 PCI-486 Parallel port, serial ports (2), 32-bit PCI slots (3), green PC connector, floppy drive interface, IDE interfaces (2) M TECHNOLOGY, INC. 486 R418 PCI-486 (VER.2) Parallel port, serial ports (2), 32-bit PCI slots (3), green PC connector, floppy drive interface, IDE interfaces (2) MAGITRONICS 486 386DX/486SX/486DX/486DX2 None MAGITRONICS 486 386DX/486SX/486DX/486DX2 None MAGITRONICS 486 486SX/486DX/486DX2 (VER. 2) 32-bit VESA local bus slots (3) MAGITRONICS 486 A-B432-C None MAGITRONICS 486 A-B435 486-33 MAINBOARD None MAGITRONICS 486 A-BL2443G, A-BL2463, A-BL2483 32-bit VESA local bus slots (3), green PC connector MAGITRONICS 486 A-BL2465 32-bit PCI slots (3), green PC connector MAGUS DATA TECHNOLOGY, INC. 486 E486 32-Bit external system DRAM card slot, 32-Bit external SRAM card slot, PS/2 bus mouse connector MAGUS DATA TECHNOLOGY, INC. 486 S486 None MAGUS DATA TECHNOLOGY, INC. 486 S486L12 EDITION 1.1 32-bit VESA local bus slots (2) MAGUS DATA TECHNOLOGY, INC. 486 S486VL EDITION 1.1 32-bit VESA local bus slots (2) MECER CORPORATION 486 B800/B820 (REV. A) None MECER CORPORATION 486 B810C (REV. B) None MECER CORPORATION 486 B815B (VER. B) None MECER CORPORATION 486 B830 (REV. B) 32-bit VESA local bus slots (2) MECER CORPORATION 486 B860/B860 (REV. A) 32-bit VESA local bus slots (2) MECER CORPORATION 486 B880 32-bit VESA local bus slots (2), 32-bit PCI slots (3), green PC connector MEMOREX TELEX CORPORATION 486 8267, 8280, 8290 Floppy drive interface, parallel ports (2), PS/2 mouse port, serial ports (2), VGA port, MICRO EXPRESS, INC. 486 FOREX 386/486 None MICRO EXPRESS, INC. 486 FOREX 386/486 (REV. B2/B3) None MICRO EXPRESS, INC. 486 FOREX 486 CACHE 32-bit VESA local bus slots (2) MICRO EXPRESS, INC. 486 FOREX 486 VESA (Rev. VL 421A/422) 32-bit VESA card slots (2) MICRO EXPRESS, INC. 486 FOREX 486/50 32-bit local bus card slot MICRO-STAR INTERNATIONAL CO., LTD. 486 MS-4116 VER. 2.0 32-bit external memory card, 32-bit VESA local bus slot MICRO-STAR INTERNATIONAL CO., LTD. 486 MS-4129 (ISA 486 AL1), ALI 486 NONCACHE None MICRO-STAR INTERNATIONAL CO., LTD. 486 MS-4129 (ISA 486 AL1), ALI 486 NONCACHE None MICRO-STAR INTERNATIONAL CO., LTD. 486 MS-4131 VLB 486 AL2 32-bit VESA local bus slots (3) MICRO-STAR INTERNATIONAL CO., LTD. 486 MS-4131G (VLB 486 AL2G) 32-bit VESA local bus slots (3), green PC connector MICRO-STAR INTERNATIONAL CO., LTD. 486 MS-4131G (VLB 486 AL2G) 32-bit VESA local bus slots (3), green PC connector MICRO-STAR INTERNATIONAL CO., LTD. 486 MS-4132 32-bit VESA local bus slots (3), green PC connector MICRO-STAR INTERNATIONAL CO., LTD. 486 MS-4132G VLB 486 SI3G 32-Bit VESA local bus slots (3) MICRO-STAR INTERNATIONAL CO., LTD. 486 MS-4134 32-bit VESA local bus slots (2), 32-bit PCI slots (3), green PC connector MICRO-STAR INTERNATIONAL CO., LTD. 486 MS-4135 32-bit PCI slots (4), green PC connector MICRO-STAR INTERNATIONAL CO., LTD. 486 MS-4136 Floppy drive interface, game port, green PC connector, IDE interface, parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port, riser slot MICRO-STAR INTERNATIONAL CO., LTD. 486 MS-4137 (VLB 486 AL5) 32-bit VESA local bus slots (3), green PC connector MICRO-STAR INTERNATIONAL CO., LTD. 486 MS-4138 32-bit VESA local bus slots (3), green PC connector MICRO-STAR INTERNATIONAL CO., LTD. 486 MS-4143 (VER. 1.0) 32-bit PCI slots (3), floppy drive interface, game interface, green PC connector, IDE interfaces (2), parallel port, serial ports (2) MICRO-STAR INTERNATIONAL CO., LTD. 486 MS-4143 (VER. 1.0) 32-bit PCI slots (3), floppy drive interface, game interface, green PC connector, IDE interfaces (2), parallel port, serial ports (2) MICRO-STAR INTERNATIONAL CO., LTD. 486 MS-4144 32-bit PCI slots (3), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, serial ports (2) MICRO-STAR INTERNATIONAL CO., LTD. 486 MS-4145 32-bit PCI slots (3), floppy drive interface, IDE interfaces (2), parallel port, serial ports (2) MICRO-STAR INTERNATIONAL CO., LTD. 486 MS4132G (VER. 2.0G) 32-bit VESA local bus slots (3), green PC connector MICRO-STAR INTERNATIONAL CO., LTD. 486 VLB 486CT1 32-bit VESA local bus slots (2) MICROMATION TECHNOLOGY, INC. 486 486-WBH None MICROMEDIA TECHNOLOGIES, INC. 486 486-S None MICROMEDIA TECHNOLOGIES, INC. 486 486-VLA 32-bit VESA local bus slots (3) MICROMEDIA TECHNOLOGIES, INC. 486 486-VLS 32-bit VESA local bus slots (2) MICROMEDIA TECHNOLOGIES, INC. 486 PCI 486 PCI local bus slots (3) MICRONICS COMPUTERS INC. 486 M4PE Floppy drive interface, IDE interface, PCI slots (3), parallel port, PS/2 mouse port, MICRONICS COMPUTERS, INC. 486 486/25 None MICRONICS COMPUTERS, INC. 486 486DX2 SYSTEM BOARD 32-bit external memory card MICRONICS COMPUTERS, INC. 486 486DX2/50 SYSTEM BOARD 32-bit external memory card MICRONICS COMPUTERS, INC. 486 486V WITH ZIF SOCKET External cache card, 32-bit VESA local bus slots (2), floppy drive interface, IDE interface (2), parallel port, serial ports (2) MICRONICS COMPUTERS, INC. 486 80486 ASIC EISA 32-bit external memory card slot MICRONICS COMPUTERS, INC. 486 80486 ASIC EISA 50MHz 32-bit local bus video card slot MICRONICS COMPUTERS, INC. 486 80486 ASIC EISA SYSTEM BOARD 32-bit local bus slot, floppy drive interface, MICRONICS COMPUTERS, INC. 486 80486 ASIC ISA None MICRONICS COMPUTERS, INC. 486 80486 ASIC SYSTEM BOARD None MICRONICS COMPUTERS, INC. 486 80486-25 ISA None MICRONICS COMPUTERS, INC. 486 80486-EISA None MICRONICS COMPUTERS, INC. 486 BABY GEMINI-486 32-bit external memory card slot MICRONICS COMPUTERS, INC. 486 BABY GEMINI-486SX 32-bit external cache/4167 card MICRONICS COMPUTERS, INC. 486 BABY GEMINI-486SX (VER. 2) Riser slot MICRONICS COMPUTERS, INC. 486 EISA 3 VL-BUS SYSTEM BOARD 32-bit VESA local bus slots (2), floppy drive interface, IDE interface, MICRONICS COMPUTERS, INC. 486 EISA-3 SYSTEM BOARD None MICRONICS COMPUTERS, INC. 486 JX30 VL-BUS 32-bit VESA local bus slots (2), floppy drive interface, MICRONICS COMPUTERS, INC. 486 JX30G 32-bit VESA local bus slots (2), floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2) MICRONICS COMPUTERS, INC. 486 JX30G VL-BUS 32-bit VESA local bus slots (2), floppy drive interface, MICRONICS COMPUTERS, INC. 486 JX30Gc VL-BUS 32-bit VESA local bus slots (2), floppy drive interface, IDE interface (2), parallel port, serial ports (2) MICRONICS COMPUTERS, INC. 486 JX30WB 32-bit VESA local bus slots (2), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2) MICRONICS COMPUTERS, INC. 486 LPM30 (REV. 3A) Riser card slot, floppy drive interface, game port, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port, LAN connector, modem port, audio connector, microphone input, line level input, line level outp MICRONICS COMPUTERS, INC. 486 LPX30WB REV. 3A Riser card slot, floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port MICRONICS COMPUTERS, INC. 486 LX30WB 32-bit VESA local bus slots (2), floppy drive interface, IDE interfaces (2), parallel port, serial ports (2) MICRONICS COMPUTERS, INC. 486 M4LI (REV. 3A) PS/2 mouse port, PS/2 mouse interface, parallel port, serial port (2), 32-bit PCI slots (4), floppy drive interface, IDE interfaces (2) MICRONICS COMPUTERS, INC. 486 M4P 32-bit PCI slots (3), floppy drive interface, IDE interface, parallel port, serial ports (2) MICRONICS COMPUTERS, INC. 486 M4PE (VER. 2A) PS/2 mouse port, parallel port, serial ports (2), 32-bit PCI slots (3), floppy drive interface, IDE interfaces (2) MICRONICS COMPUTERS, INC. 486 M4PI 32-bit PCI slots (3), floppy drive interface, IDE interfaces (2), parallel port, serial ports (2) MICRONICS COMPUTERS, INC. 486 MINI 486 (VER.B) None MICRONICS COMPUTERS, INC. 486 MINI 486 SYSTEM BOARD None MICRONICS COMPUTERS, INC. 486 MINI486 (VER. 1.0) None MICRONICS COMPUTERS, INC. 486 MPOWER4 32-bit VESA local bus, floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port MICRONICS COMPUTERS, INC. 486 MPOWER4 PLUS (VER.A) 32-bit VESA local bus, floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port MICRONICS COMPUTERS, INC. 486 MX30 VL-BUS 32-bit VESA local bus slots (2) MICRONICS COMPUTERS, INC. 486 NON-ZIF SOCKET SYSTEM BOARD External cache card, 32-bit VESA local bus slots (2), floppy drive interface, IDE interface (2), parallel port, serial ports (2) MICRONICS COMPUTERS, INC. 486 ZIF SOCKET SYSTEM BOARD 32-bit VESA local bus slots (2), floppy drive interface, IDE interface, parallel port, MICROWAY, INC. 486 486 US 32-bit external memory card slot MICROWAY, INC. 486 NUMBER SMASHER-486E Bus mouse port, parallel port, serial ports (2) MICROWISE, INC. 486 486A-33 32-bit external memory card slot MINTA TECHNOLOGIES, CO. 486 80486DX/SX - SC Rev. E None MITAC INTERNATIONAL CORPORATION 486 IB-4033 None MITAC INTERNATIONAL CORPORATION 486 IH 4125 None MITAC INTERNATIONAL CORPORATION 486 IH4077D 32-bit VESA local bus slots (2), floppy drive interface, IDE interface, parallel port, serial ports (2) MITAC INTERNATIONAL CORPORATION 486 IH4077D 32-bit VESA local bus slots (2), floppy drive interface, IDE interface, parallel port, serial ports (2) MNC INTERNATIONAL, INC. 486 MNC 1144 COMPLETE 486SBC (Rev. 2.10) Floppy drive interface, IDE interface, parallel port, serial port (2), VGA port MODULAR CIRCUIT TECHNOLOGY 486 JDR C486-33/50/66 None MODULAR CIRCUIT TECHNOLOGY 486 JDR-V486-SX33/DX33/DX2 66 32-bit VESA local bus slots (2) MODULAR CIRCUIT TECHNOLOGY 486 MCT 486 ISA None MODULAR CIRCUIT TECHNOLOGY 486 MCT-M3486-33/40 None MODULAR CIRCUIT TECHNOLOGY 486 MCT-M486EV-66 32-bit VESA local bus slots (2) MODULAR CIRCUIT TECHNOLOGY 486 MCT-M486EV-66 32-bit VESA local bus slots (2) MODULAR CIRCUIT TECHNOLOGY 486 MCT-M486EV-66 32-bit VESA local bus slots (2) MODULAR CIRCUIT TECHNOLOGY 486 MCT-M486VL-33/66 32-bit VESA local bus slots (2)